FCC ID: UUYESS900 900 MHz Sensor

ViewPoint Essentials Sensor User Manual Document No. DS-VP-ESS-S-MNL August 12, 2022 Rev. DRAFT VP Essentials Sensor User Manual (Rev. A) 2 Contents 1.0 2.0 Introduction ...................................................................................................................................... 4 Regulatory Compliance ..................................................................................................................... 5 United States FCC .......................................................................................................................... 5 Industry Canada ............................................................................................................................ 6 Reference Documents ....................................................................................................................... 6 VP Essentials Sensor Models ............................................................................................................. 7 Needed Infrastructure ...................................................................................................................... 7 Features ............................................................................................................................................ 8 User Interface ............................................................................................................................... 8 Inputs .......................................................................................................................................... 10 Installing and Configuring ............................................................................................................... 11 Opening Enclosure ...................................................................................................................... 11 Inserting Batteries ....................................................................................................................... 12 Physically Installing ..................................................................................................................... 12 Startup ........................................................................................................................................ 13 Configuring .................................................................................................................................. 13 2.1 2.2 3.0 4.0 5.0 6.0 6.1 6.2 7.0 7.1 7.2 7.3 7.4 7.5 7.5.1 7.5.2 7.5.3 Connect Configuration Cable (Phono Stereo Connector) ................................................... 13 3-Pin Configuration Cable (option) ..................................................................................... 14 VPx Configuration Utility ..................................................................................................... 14 7.6 7.7 Shipping ....................................................................................................................................... 15 Log Term Storage ........................................................................................................................ 15 8.0 8.1 Sensor Modes ................................................................................................................................. 15 Fast Transmit Mode .................................................................................................................... 15 New Battery .................................................................................................................................... 16 9.0 Specs ............................................................................................................................................... 16 10.0 11.0 Probe List ........................................................................................................................................ 17 11.1 DS-VP-ESS-900-S-TEMP - VP Essentials 900MHz Temperature Sensor ...................................... 17 11.2 DS-VP-ESS-900-S-HUMI - VP Essentials 900MHz Humidity Sensor ............................................. 17 12.0 Accessory List .................................................................................................................................. 17 13.0 CheckPoint G4 Compatibility .......................................................................................................... 17 14.0 Troubleshooting .............................................................................................................................. 19 15.0 Revisions ......................................................................................................................................... 21 Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 3 Figures 2-1 VP Essentials Product Label .................................................................................................................... 5 Table 3-1 Reference Documents ................................................................................................................... 6 Tables 4-1 VP Essentials Sensor Models ....................................................................................................... 7 Tables 5-1 Needed Infrastructure ................................................................................................................. 7 6-1 VP Essentials Sensor Illustrating Position of Push Button and LED ..................................................... 8 Tables 6-1 Sensor Query Actions .................................................................................................................. 8 Tables 6-2 Changing Sensor Operating Mode............................................................................................... 9 6-2 VP Essentials Sensor Top Side View Showing Ports .............................................................................. 10 7-1 VP Essentials Sensor Opening Enclosure ........................................................................................... 11 7-1-1 VP Essentials Sensor Opening Enclosure ........................................................................................ 11 7-1 VP Essentials Sensor Batteries ........................................................................................................... 12 7-3 VP Essentials Sensor Mounting Holes ................................................................................................ 13 7-5-1 VP Essentials Sensor Top Side View Showing Configuration Port and Cable .................................... 13 7-5-2 VP Essentials Sensor Top Side View Showing Configuration Port and Cable .................................... 14 Table 13-1 Probe / Input Part Numbers...................................................................................................... 17 Table 13-1 Probe / Input Part Numbers...................................................................................................... 17 Table 14-1 Accessory Type Part Numbers .................................................................................................. 17 Table 15-1 VPx Pro G4 Compatibility Mode Required Hardware ............................................................... 17 Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 4 1.0 Introduction The ViewPoint Essentials wireless sensor is an integral part of the ViewPoint continuous monitoring

(CM) system which is an end-to-end enterprise asset monitoring system that is designed to continuously monitor vital assets and notify individuals when an alarm condition exists. The sensors have the following features:

Battery powered 1 analog input: Thermistor temperature probe 1 digital input: Humidity/Temperature 1 dry contact / binary input Expanded local data storage of 2,500-time stamped records (2 analog and 1 discreet input) Removable probe for convenient Probe Exchange options There are three families of the ViewPoint (VP) sensors: VPx Generation 5, VPx Professional Generation 6 and VP Essentials. VP Essentials sensors operate in the 902 to 928 MHz frequency range and requires a ViewPoint Access Point to be able to forward data to the ViewPoint application. The VP Essentials 900 MHz sensors also support a legacy radio network protocol called Check Point G4 and can be used in the same system as Check Point G4 sensors. For more information on how to configure this mode, see the VPx Configuration Utility User Manual. The main part of the user guide assumes the use of the ViewPoint Radio Network. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 5 2.0 Regulatory Compliance 2.1 United States FCC This device complies with Part 15 of the FCC Rules. Sensor operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Ex. 2-1 VP Essentials Product Label Warning: This unit is not explosion proof and is not rated for intrinsically safe installations. WARNING This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

* Reorient or relocate the receiving antenna.

* Increase the separation between the equipment and receiver.

* Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

* Consult the dealer or an experienced radio/TV technician for help. In order to maintain compliance with FCC regulations, shielded cables must be used with this equipment. Operation with non-approved equipment or unshielded cables is likely to result in interference to radio and TV reception. The user is cautioned that changes and modifications made to the equipment without the approval of manufacturer could void the user's authority to operate this equipment. RF Exposure Notice: To satisfy RF exposure requirements, this device and its antennas must operate with a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 6 2.2 Industry Canada This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR dIndustrie Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes: (1) lappareil ne doit pas produire de brouillage, et (2) lutilisateur de lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den compromettre le fonctionnement. 3.0 Reference Documents Document VPx Configuration Utility User Manual ViewPoint User Manual ViewPoint System Configuration & Best Practices Guide VPx Access Point Setup Instructions Continuous Monitoring Probe Accuracy Data Sheet & Calibration Policy Table 3-1 Reference Documents Document Number DS-VPX-VP-S-UTIL-MNL DV1561 DV3403 DV3405 D1701 Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 7 4.0 VP Essentials Sensor Models VP Essentials Sensor Model VP Essentials 900MHz Temperature Sensor Part Number DS-VP-ESS-900-S-TEMP 10K Thermistor input VP Essentials 900MHz Humidity Sensor I2C Humidity/Temperature input DS-VP-ESS-900-S-HUMI Tables 4-1 VP Essentials Sensor Models 5.0 Needed Infrastructure The VP Essentials sensors are a component in the larger ViewPoint application, and they need particular hardware to function in the ViewPoint application. VP Essentials Sensors Model Part Number View Point 900MHz Access Point

*Note: G4 Compatibility Mode requires 45010-V4 G4 900MHz Access Point CM-000250 Sensor Support Model ViewPoint Essentials USB Configuration Cable

-or-

ViewPoint (G3-G4-VPx Pro) 3-Pin Programming Cable Part Number 166552 166563 VPx Configuration Utility SW-00056 Software Application Options Model ViewPoint Professional Edition (VP Pro) ViewPoint Cloud Edition (VPC) Tables 5-1 Needed Infrastructure Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 8 6.0 Features 6.1 User Interface LED Hidden Push Button 6-1 VP Essentials Sensor Illustrating Position of Push Button and LED The hidden push button is located underneath the door icon image. Push the door icon image to engage the push button. As you push that area you should feel the button indent and hear a click. Use the push button and LED to query the sensor about various states of operation and to change the operating mode of the sensor. Query Sensor Button No button pressed. LED Not lite. One button press (held less than 3 seconds) The LED is turned on for 10 seconds. No button pressed Two quick blinks every second. Action or State Normal run mode. (Sensor is linked to the Access Point) Normal run mode query.

(Sensor is linked to the Access Point) Firmware Fault Condition or Unprogrammed/Configuration Error Indication of Radio Broken Link State One button press (held less than 3 seconds) Indication of Deep Sleep State One button press (held less than 3 seconds) Tables 6-2 Sensor Query Actions LED is lite while button pressed and when button is released. LED is turned off and then a quick blink after one second. LED is lite while button pressed and when button is released. LED is turned off and then two quick blinks after one second. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 9 Action or State Fast transmit mode transmit once a minute for 15 minutes.

(Sensor must be linked to the Access Point) Reset Radio Link State (when sensor radio is in the Broken link state) Changing Operating Mode Button Two button presses within one second. LED The LED is turned on for 10 seconds. Two button presses within one second. Quick blink for once a second at first until Link table built. Then the sensor will blink the LED 4 times in a second and then leave the LED on for 10 seconds at which point the sensor is linked with the Access Point. The LED is turned on for 3 seconds. The sensor does a blink off the LED and leaves on for half a second. The sensor then turns off the LED for 1 second and then does two blinks a half second apart. While the button is pressed, the goes through 2 sequences of the LED on for 3 seconds and off for 1 second. Afterwards the sensor will perform 2 quick blinks for the LED. While the button is pressed, the goes through 3 sequences of the LED on for 3 seconds and off for 1 second. Afterwards the sensor will perform 2 quick blinks for the LED. Waking from Deep Sleep state. Three button presses within five seconds during Deep Sleep. Firmware Reset of Sensor Hold button for greater than 7 seconds but less than 11 seconds. Place Sensor in Deep Sleep Hold button for greater than 11 seconds. Tables 6-2 Changing Sensor Operating Mode Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 10 6.2 Inputs discrete switch/contact input port Thermistor Temperature or I2C Humidity/Temperature Port 6-2 VP Essentials Sensor Top Side View Showing Ports The VP Essentials Sensor has 2 I/O ports that can accept Thermistor temperature probe or one I2C input for a Humidity/Temperature probe and a discrete switch/contact input. The discrete switch/contact input can be used at the same time as either the Thermistor temperature probe or Humidity/Temperature probe. Either Thermistor temperature probe or Humidity/Temperature probe can be used (configured) but both cannot be used at the same time. Note: The discrete switch/contact input port is also used as the configuration port where 166552 ViewPoint Essentials USB Configuration Cable plugs into the same port. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 11 7.0 Installing and Configuring 7.1 Opening Enclosure Enclosure Screw Pry Slot 7-1 VP Essentials Sensor Opening Enclosure To remove the top enclosure, remove the enclosure screw using a small Philips screwdriver. Take a small flat head screwdriver and insert it in the pry slot. Pry the top and bottom enclosures apart and then remove the top part of the enclosure. 7-1-1 VP Essentials Sensor Opening Enclosure To put the sensor back together, place the bottom of top enclosure and line up with the bottom portion of the top enclosure. Rotate the top enclosure (hinged at the bottom of the bottom enclosure) until the top snaps into the bottom enclosure. Insert the screw to secure the top and the bottom together. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 12 7.2 Inserting Batteries

7-1 VP Essentials Sensor Batteries Insert 2 1.5-volt Alkaline batteries (MesaLabs PN TWA53-A) in the sensor battery connectors. Note the direction and polarity of the batteries compared to the battery connector polarity. Replace both batteries with new batteries. Do not mix new and used batteries. The sensor will detect the new batteries and automatically set the battery meter for the new batteries. 7.3 Physically Installing Please consult the document "DV3403 ViewPoint System Configuration & Best Practices Guide for guidance about placement of the sensors with relation to ViewPoint 900 MHz Access Points. Double sticky tape, sticky backed Velcro, zip tie and screw are options for mounting the VP Essentials sensor. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 13 Connect the probes. *Note: Route wires/cables away from the sensor to avoid RF interference issues. 7-3 VP Essentials Sensor Mounting Holes 7.4 Startup The sensor comes from the factory in a deep sleep state. To wake up the sensor, press the button 3 times within 5 seconds. The LED is does a quick flash. Refer to the section 6.1 User Interface for information about locating the push button. 7.5 Configuring 7.5.1 Connect Configuration Cable (Phono Stereo Connector) configuration port configuration cable 7-5-1 VP Essentials Sensor Top Side View Showing Configuration Port and Cable Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 14 Insert the USB connector of the 166552 VP Essentials Configuration Cable to the USB port of the computer. Connect the 166552-phono connector to the sensors configuration port. (Note, the same port is used for the digital input and may have 43006 Door Access/Motion Cable attached. Remove this cable first before connecting the 166552 Configuration cable.) 7.5.2 3-Pin Configuration Cable (option) 7-5-2 VP Essentials Sensor Top Side View Showing Configuration Port and Cable An alternative means of configuring the sensor is to insert the USB connector of the 166564 VP (G3-G4-

VPx Pro) 3-Pin Programming Cable to the USB port of the computer. The enclosure will need to be opened to connect the cable. To open the enclosure, follow the instructions in section 7.1 Opening Enclosure. Locate the 4-pin connector in the upper right corner of the sensor labeled TC1. Connect the 4-pin cable connector to the connector at TC1. Note: the cable connector is polarized and can only fit in one direction. Be careful not to fit the cable connector off by one pin. 7.5.3 VPx Configuration Utility Both the VPx Configuration Utility and ViewPoint Programming/VPx Configuration Cable must be used to configuration the VP Essentials sensor. Refer to the VPx Configuration Utility Manual (DS-VPX-VP-S-

UTIL-MNL) for detailed instructions of how to configure the sensor. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 15 7.6 Shipping If the sensor is going to be shipped, place the sensor into deep sleep mode. Use the VPx Configuration Utility to set the sensor to deep sleep mode. Refer to the VPx Configuration Utility Manual for instructions. 7.7 Log Term Storage If the sensor is not going to be used for a large period of time, remove the batteries before long-term storage. 8.0 Sensor Modes 8.1 Fast Transmit Mode When the sensor is placed in Fast Transmit Mode, it will transmit more frequently for 15 minutes. After 15 minutes the sensor will go back to its normal logging mode. To place the sensor in Fast Transmit Mode, press the push button twice within one second. The sensor will turn on the LED for 10 seconds. After the 15 minutes expires, the sensor will transmit at its normal configured cadence. If the push button is pressed twice within one second while in fast transmit mode, the sensor will continue with fast transmit mode for another 15 minutes. For more information about location of the push button and LED, see section 6.1 User Interface. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 16 9.0 New Battery

*Note: The units require two (2) AA 1.5v Alkaline batteries MesaLabs PN TWA53-A. Following the instructions in section 7.1 Open Enclosure and open the enclosure. Following the instructions in section 7.2 Inserting Batteries. Note the direction and polarity of the batteries compared to the battery connector polarity. Replace both batteries with new batteries. Do not mix new and used batteries. Following the instructions in section 7.1 Open Enclosure and assemble the enclosure. The sensor will detect the new batteries an automatically set the battery meter for the new batteries. 10.0 Specs All specs below are estimated ranges for the described inputs. Please refer to the probe specification documentation for the exact application ranges and tolerances. Input Range Sensor Thermistor Input Range: -50C to 125C Air Temperature Probe (P/N 72107) 3" Stainless Steel Temperature Probe- (P/N 72105-12) Range: 4C to +37C Tolerance: 0.5C @ -25C to +45C (1.0C @ -90C to -26C and +46C to +140C) Temperature and Humidity Probe (P/N 72112) Range: +10C to 40C and 10% RH to 90% RH Accuracy: 0.4C and 3% RH Operating Environment 15 C to 40 C and 0-90% RH non-condensing Storage Capacity 2,500 logged packets (2 analog and 1 discreet input) (with a transmit time of 5 minutes the sensor will hold 8.6 days. For 15 minutes the sensor will hold 26 days). Battery Battery Life 2 1.5V AA Cell (Alkaline or Lithium) Varies with Transmit Interval 5 minutes 15 minutes 1 year 2 year Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 17 Radio Other 900 MHz (902-928 MHz) frequency hopping with 4 channels NIST or ISO/IEC ILAC-MRA 17025:2005 Certificate of Calibration: Self-service, probe swap or on-site calibration options 11.0 Probe List 11.1 DS-VP-ESS-900-S-TEMP - VP Essentials 900MHz Temperature Sensor Probe / Input Air Temperature Probe 3" Stainless Steel Temperature Probe

-30C to +60C Door Switch, Motion, Alarm Contact Part Number 72107 72105-12 43006 Table 11-1 Probe / Input Part Numbers 11.2 DS-VP-ESS-900-S-HUMI - VP Essentials 900MHz Humidity Sensor Probe / Input Temp/Humidity (Snap) Door Switch, Motion, Alarm Contact Part Number 72112 43006 Table 11-2 Probe / Input Part Numbers 12.0 Accessory List Accessory Type Battery 1.5V AA Alkaline Cable, Snap Extension, 25', 22AWG Cable, Snap Extension, 75', 22AWG Single Bottle with PGX Part Number TWA53-A 63001 63000 TWA200A Table 12-1 Accessory Type Part Numbers 13.0 CheckPoint G4 Compatibility VP Essentials 900 MHz sensors can be configured to communicate with the CheckPoint G4 radio network protocol. VP Essentials 900 MHz sensors, when configured correctly, can be used as a compatible alternative for CheckPoint G4 sensors and must use a CheckPoint G4 Access Point. Model G4 900MHz Access Point Part Number 45010-V4 Table 15-1 VPx Pro G4 Compatibility Mode Required Hardware G4 and G5 protocols are not directly compatible with each other. Any related system hardware components must run exclusively on the same protocol. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 18 Both G4 and G5 protocols are supported by ViewPoint. G4 protocol does not support over-the-air (OTA) updates (transmit intervals, alarm points and firmware upgrade). The G4 protocol is also limited to the standard temperature and humidity measurements in the original application ranges supported by the G4 hardware. For any other measurement type, the G5 protocol must be used.

*Note: Maximum possible temperature measurement range of the G4 compatibility mode is limited to

-50C to 125 C. For any measurements taken outside of this range, the G5 protocol must be used.

*Note: Local alarms at the sensor must be set at the sensor. Alarms are not configured over-the-air

(OTA) from ViewPoint to the sensor.

*Note: Measurement accuracy and precision while operating in G4 mode shall be evaluated to the original G4 probe specification. See the document D1701 Probe Accuracy Data Sheet & Calibration Policy for G4 probe specifications. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 19 14.0 Troubleshooting No LED response Issue Action 1) Check batteries ViewPoint not receiving packets from the 900 MHz sensor a. Check if batteries are aligned in the right direction. b. VP Essentials uses 2 1.5V AA Batteries. c. Check the battery chemistry and voltage. d. Only use new batteries. 2) Is the sensor in deep sleep? Do a quick press of the button. If in deep sleep, LED is lite while button pressed and when button is released. LED is turned off and then two quick blinks after one second. 1) Check the Access Point a. Powered on?

b. Is the Service Link Status LED on solid green?

c. Are there other sensors associated with this Access Point that are also offline?

Is antenna attached to the Access Point and oriented correctly?

2) Does Sensor respond to Normal Run d. Query push button?

a. Check batteries 3) Check for broken link indicator at sensor using the push button a. Did the sensor recently get moved?

b. Did the RF environment recently change? Changes to the building? Lab equipment changed or moved?

c. Check if a possible interference source is nearby like electric motors, microwave ovens, and other electronics. d. Check if electrical cables are draped over the unit. e. Consider reorienting the sensor. f. Consider moving the sensor closer to the Access Point. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 20 g. In ViewPoint, find the RSSI value. Move the sensor and then wait 24 hours to reevaluate the RSSI. h. For 900 MHz, if the sensor is within range of multiple ViewPoint Access Points, consider manually setting a Preferred Link SN. 1) Check the Access Point a.

(For 900 MHz sensors only) Is the Service Link Status LED on solid green?

b. Are there other sensors associated with this Access Point having similar issues?

Is antenna attached to the Access Point and oriented correctly. c. 2) Check batteries. 4) Check for broken link indicator at sensor using the push button. a. Did the sensor get moved?

b. Did the RF environment recently change? Changes to the building? Lab equipment changed or moved?

c. Check if interference source nearby like electric motors, microwave ovens, and other electronics. d. Check if electrical cables are draped over the unit. e. Consider reorienting the sensor. f. Consider moving the sensor closer to the Access Point. In ViewPoint, find the RSSI value. Move the sensor and then wait 24 hours to reevaluate the RSSI. g. h. For 900 MHz, if the sensor is within range of multiple ViewPoint Access Points, consider manually setting a Preferred Link SN. 1) The sensor may have a faulty configuration or firmware may be corrupted. Contact Mesalabs Support. ViewPoint receiving data from the sensor intermittently (large Updated times in ViewPoint). Sensor does two quick blinks of the LED every second. Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com VP Essentials Sensor User Manual (Rev. A) 21 ViewPoint indicate the sensor has a disconnected probe. Probe Disconnected 1) For thermistor temperature probes, check that all wires are connected. 2) Check probe is connected. Reconnect probe. 3) Replace probe 4) Check the configured alarm limits. 5) Check if the probe is being used at extreme temperatures. Incorrect readings are delivered to ViewPoint. 1) Check that the probe is connected to the Battery Life is not as expected input 2) Check that the probe is wired correctly and there are no damaged wires. 3) If the probe wiring was extended, verify that the length of the extension does not exceed recommended maximum length. 4) Verify that the probe wiring is not near anything that could cause interference

(ex. Electric motors or microwave oven). 1) Sensor battery life is dependent on what type of probe is connected, how often the sensor is configured to transmit, and how often it is left to persist in an alarm state. 2) Addressing alarms in a timely manner will help to preserve battery life. 3) Only replace with new batteries of the same capacity. 15.0 Revisions REV A DESCRIPTION Initial Release DATE 8/15/2022 Mesa Labs, Inc. 12100 W. 6th Avenue Lakewood, CO 80228 USA Tel: 303-565-2724 monitoring.mesalabs.com techsupport@mesalabs.com

D C B A B 3.91 C 3.24 D 1.09 E .69 8 7 6 5 4 3 2 REVISIONS 1 A 1.730.020 K .782 INSERT PEM_PKB-440 REV. DESCRIPTION DATE DRAWN A B INITIAL RELEASE 5/20/2022 ADDED MODEL INFORMATION 7/22/2022 TH TH J .067 A DETAIL A SCALE 2 : 1 NOTES:

1. 2. 3. 4. FOR INSPECTION ONLY, PART FILES DO NOT MATCH AS MOLDED PART LETTERS LEADING THE DIMENSIONS ARE FOR EASE OF INSPECTION MATERIAL: FR3010-013689 PC/ABS WHITE PRESS IN INSERT PEM_PKB-440, WITH SCREW 440_250_SS_BO_91249A105 8 7 6 5 L .668.008 UNLESS OTHERWISE SPECIFIED:

DIMENSIONS ARE INCHES

.X

.XX

.XXX 0.030 0.010 0.005 CORNER BREAK (EXTERNAL)

(DEBURR) R.002 TO R.020

(OR EQUIVALENT) FILLET RADII (INTERNAL R.002 TO R.020)

0.5 4 ABS MATERIAL:

FINISH:

3 These drawings and specifications are the property of Mesa Laboratories, Inc. and shall not be reproduced, copied, or used for manufacture or sale of apparatus, in whole or in part, without the written approval of Mesa Laboratories, Inc 12100 West 6th Avenue Lakewood, CO 80228 DRAWN DATE T HAROVER 7/22/2022 TITLE:

Essentials Sensor Enclosure - Back DWG NO. CM-000731 REVISION B SCALE:1:1 2 SIZE:

B SHEET 1 OF 2 1 D C B A D C B A 8 7 6 5 4 3 2 1 H 1.280.015 F 3.00 I .28.02 D C B G .80 8 7 6 5 4 3 TITLE:

12100 West 6th Avenue Lakewood, CO 80228 Essentials Sensor Enclosure - Back A DWG NO. CM-000731 REVISION B SCALE:2:1 2 SIZE:

B SHEET 2 OF 2 1 FCC ID: UUYESS900 IC ID: 6891A-ESS900 For the product number and FCC/IC identifies, VP Essentials DS-VP-ESS-900-S does not use a stick on label but has this information embedded on part of the back enclosure. This information is part of the mold that produces the back enclosure.

3 MesaLabs 24-August-2022 Compatible Electronics TCB 114 Olinda Drive Brea, California 92823 Subject: Request for withholding from public disclosure the schematics, block diagrams, and operational description pursuant to an application for certification Sir or Madam:

We, Mesa Laboratories, Inc., would like to request that all schematics, block diagrams, and operational descriptions submitted with the application for certification be withheld from public disclosure as per Section 0.459 of FCC Rules. This request is made under the provisions of Section 0.457 (d) of the Commissions Rules, and Section 552 (b)(4) of the Freedom of Information Act. These sections authorize the withholding from public inspection, those materials which would be privileged as a matter of law if retained by the person submitting them, and materials which would not customarily be released to the public by that person. If you have any questions, please do not hesitate to contact us at (303) 987-8000 or jasmine.stone @ mesalabs.com. Sincerely, asmine Stone Director of Quality Assurance and Regulatory Affairs DS-VP-ESS-900-S FCC ID: UUYESS900

/m MesaLabs 24-August-2022 CETCB 114 Olinda Drive Brea, CA 92823 Gentlemen:

This is a letter of authorization to accept Compatible Electronics, Inc., specifically including the employees of Compatible Electronics, as an Agent for Mesa Laboratories, Inc. 12100 W. 6" Ave. Lakewood Colorado 80228, for a period of one year, to sign applications before the Commission on our behalf, to make representations to you on our behalf, and to receive and exchange data between our company and the Commission in connection with certification of the following Mesa product(s):

VP Essentials model (DS-VP-ESS-900-S) continuous monitoring sensors containing RF transceivers (FCC ID: UUYESS900). under FCC Docket Number 20780 and General Docket Number 80-284 pursuant to Part 15 of FCC Rules and Regulations. Please also accept this letter as an attestation that neither Mesa Laboratories, Inc. nor any of its officers, directors, or persons holding 5% or more of the outstanding stock or shares, voting or non-voting, have been denied federal benefits under section 5301 of the Anti-Drug-Abuse act of 1988,21 U.S.C. 853(a). In addition, Mesa Laboratories, Inc. will notify the Federal Communications Commission if, at any time, the situation changes causing Mesa Laboratories, Inc. to be denied federal benefits. If you have any further questions or need additional information, please feel free to give me a call at 303-987-8000 or email jasmine.stone @mesalabs.com. Sincerely, Be Jasmine Stone Director of Quality Assurance and Regulatory Affairs Mesa Laboratories Inc. 12100 W. 6'" Ave. Lakewood, CO 80228 USA

(303) 987-8000 FAX (303) 987-8989 www.mesalabs.com Symbol MLAB on the NASDAQ

mm MesaLabs 24-August-2022 Compatible Electronics TCB 114 Olinda Drive Brea, California 92823 Subject: TCB application submittal Sir or Madam:

We, Mesa Laboratories, Inc., would like to declare that the application being submitted for the device with FCC ID: UUYESS900, has not been submitted to another TCB or FCC for certification. If you have any questions, please do not hesitate to contact us at 303-087-8000 or jasmine.stone @mesalabs.com. Sincerely, Z24-PG-2022 asmine Stone Date irector of Quality Assurance and Regulatory Affairs Mesa Laboratories Inc. 12100 W. 6 Ave. Lakewood, CO 80228 USA

(303) 987-8000 FAX (303) 987-8989 www.mesalabs.com Symbol MLAB on the NASDAQ