FCC ID: 2AY22-WPZTZT92 ZETA Water Pressure Sensor

Water Pressure Sensor ZETA Water Pressure Sensorr 1 Water Pressure Sensor Copyright Statement ZiFiSense owns the copyright on this specification. No part of this specification may be reproduced in any form or means, without the prior written consent of ZiFiSense. Disclaimer This specification is preliminary and is subject to change at any time without prior notice. ZiFiSense assumes no responsibility for any errors contained herein. ZiFiSense is not responsible for any patent infringement of third party on its use or as a result of its uses. Other products/services not certified by the patent license, shall be deemed within patent ownership of ZiFiSense. 2 Water Pressure Sensor 1. Product Description...............................................................................................................................4 2. Applications........................................................................................................................................... 4 3. Appearance............................................................................................................................................4 4. Features................................................................................................................................................. 4 5. Product parameters......................................................................................................................... 5 6. Packing List........................................................................................................................................ 5 7. Installation.......................................................................................................................................... 6 7.1. Wall-mounted...........................................................................................................................6 7.2. Pole installation..................................................................................................................... 9 7.3. Waterproofing...................................................................................................................... 11 8. Use of Device................................................................................................................................... 13 8.1. Steps for usage....................................................................................................................... 13 8.2. Support function.................................................................................................................. 13 9. Common faults and handling...................................................................................................... 15 3 1. Product Description Water Pressure Sensor ZETA Water Pressure Sensor is a low power consumption module with the external water pressure detector which can report the water pressure readings periodically with adjustable alarm threshold values. The pressure sensor is installed at the inspection point by modifying the pipeline. 2. Applications Water pressure detection of booster pump, fire pump, live water pump pipeline 3. Appearance 4. Features Wireless transmission Battery-powered, low power consumption Easy to install, high sensitivity Reliable detection Real-time transmission 4 5. Product parameters Water Pressure Sensor Product No. WPZTZT92 Transmission protocol ZETA Wireless Features Frequency band 920-925 MHz Electrical Features Battery capacity Sensor: 2700 mAh @ 12V ZETA Module: 2700mAh @ 3.3V Output power 203 mW Power supply Battery, ER14505 Stand-by current 10 A Working current 70 mA Size 160*110*60 mm Physical Features Enclosure material Aluminum Waterproof level IP65 Antenna Range External glue stick antenna 0~0.6Mpa (customizable) Precision 1%Mpa Operating temperature

-20

~+75 Storage temperature

-30

~+85 Sensor Characteristics Working Environment 6. Packing List Water Pressure Sensor Battery 1 6 5 7. Installation Water Pressure Sensor There are two installation methods: wall-mounted, pole-mounted. 7.1. Wall-mounted 7.1.1.Auxiliary material No. Materials 1 Expansion screw M6*50) Impact drill, #6 drill bit, hammer, flat-blade screwdriver, Phillips screwdriver, M6 Allen key, M6 open end wrench 2 Quantity 4/device 7.1.2.Installation instructions Use an M6 Allen key to open the screw on the left to fix the bracket Bracket installation 6 Water Pressure Sensor Power on Use an M6 Allen key to open the case 7 Water Pressure Sensor Install the battery and connect the sensor cable 8 Water Pressure Sensor 7.2. Pole installation 7.2.1.Auxiliary material No. Materials 1 2 Pole mounting accessories, support 50MM pole M6 Allen wrench, M6 open end wrench Quantity 2/device 7.2.2.Installation instructions Bracket installation Use an M6 Allen key to open the screw on the left to fix the bracket. Fixed holding pole 9 Water Pressure Sensor Fix the device to the pole. Power on Use an M6 Allen key to open the case 10 Water Pressure Sensor Install the battery and connect the sensor cable 7.3. Waterproofing When installed outdoors or indoors in a humid place, the antenna port and sensor inlet of the device need to be waterproofed. 11 Water Pressure Sensor Three layers of protection, from the inside to the outside are: adhesive tape-clay-adhesive tape:

Use waterproof tape to wrap around the interface:

Cut a piece of waterproof glue, stretch it and wrap it along the RF port 12 Finally, use waterproof tape to wrap it again:

Water Pressure Sensor 8. Use of Device 8.1. Steps for usage Place the device in the range covered by the ZETA network, install the battery, and wait for the device to go online. When the device is online, report the current device status once, and check whether the device is detected correctly according to the reported water pressure status. If it is not accurate, you need to check whether the range of the device and the sensor are consistent. Before the sensor is installed, an initial calibration can be issued to avoid detection errors. According to the use scenario, set the alarm enable state and alarm threshold and other policy configurations. Daily maintenance and data viewing. 8.2. Support function Report version number: Only report once after power-on. Status report: normal heartbeat/alarm/release alarm, the heartbeat status will be reported once after power on. Set/query reporting heartbeat cycle-h: Set or query the currently set heartbeat reporting cycle by hour. (Range: 1-24 hours, default value: 2 13 Water Pressure Sensor hours) Set/query reporting heartbeat cycle-m: Set or query the currently set heartbeat reporting cycle in minutes. (Range: 1-65535 minutes) Set/query the alarm cycle: When the detected water pressure exceeds the set threshold, the alarm will be reported according to the set cycle.

(Range: 0-255 minutes, default value: 0, 0 means that the alarm is only reported once, without periodic reporting.) Set/query alarm threshold: upper alarm threshold and lower alarm threshold. Once the detection value exceeds the set alarm threshold, the device will immediately report an alarm. (Range: 0~2.55, unit:

0.01MPa, a value of 0xFF means that there is no such threshold threshold. Note that the lower threshold must be lower than the upper threshold when setting) Setting/querying the alarm threshold: To avoid repeated alarms caused by the fluctuation of the device's collection value within the alarm threshold, the default value is generally used, and there is no need to set it. Set/query alarm enable: turn on/off the threshold alarm. Set/query collection period: the period for the device to collect sensor information (range: 0-65535 seconds, when the value is 0, it means real-time collection). Setting/query range: It needs to be set according to the range of the sensor. When the range is inconsistent, the detected water pressure value will be wrong. Set/query initialization calibration: reset the current detection value to 0. After the device receives the information, it starts calibration and feeds back the current calibration value. Query device status: query the current status of the device, including the current water pressure value and alarm enable information. Query version number: Actively query the software version number of the current device. 14 Water Pressure Sensor 9. Common faults and handling Ensure ZETA signal coverage Ensure that the device is powered on, and the ZETA network device management platform can observe that the ZETA module is on line Check the battery usage of the device. When the battery is low, replace the battery in time. 15 FCC Statement 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. This device complies with FCC PART15 Rules. 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Water Pressure Sensor 16

Label location Size:15*10mm M/N: WPZTZT92 FCC ID: 2AY22-WPZTZT92 This device complies with part 15 of the FCC Rules. 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.

Xiamen ZiFiSense InfoTech Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021-03-17 Subject: Request for Confidentiality FCC ID: 2AY22-WPZTZT92 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules

(47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Long-Term Confidentiality Short-Term Confidentiality NOTE 2 Exhibits ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info No No No No No No No No No No No No No No No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name: Paul Li Title: Manager 1/1

Xiamen ZiFiSense InfoTech Co., Ltd Letter of Authorization Company: Xiamen ZiFiSense InfoTech Co., Ltd Address: Room 803, Building A-05, Software Park Phase III, Jimei District, Xiamen, China Product Name: ZETA Water Pressure Sensor Model Number: WPZTZT92 FCC Identifier: 2AY22-WPZTZT92 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Date: 2021-03-17 Name:

Title: Manager Signature of applicant: Paul Li 1/1