FCC ID: 2AI67-S4T SMOKE X4

Radiance Instruments Co. Ltd. Flat 2002, 20/F, CEO Tower, 77 Wing Hong Street Lai Chi Kok, Kowloon, Hong Kong, China. Phone: +852 2466-8608 Fax: +852 2466-1231 PRODUCT SPECIFICATION Product number: TMW023-4P Product name: SMOKE X4 Versions: V1.0 Features:

High/low alarm setting. Min/max temperature reading Clear LCD display with backlight External adapter and battery power Specification:

Measuring range 4 Channels BBQ/Oven monitor. LORA WAN connectivity IP66 waterproof. Loud alarm sound Fan control Temperature accuracy

-58 ~ 572 F / -50 ~ 300C 1.8F(1 C) between -4F to 248F -20 to 120C 3.6F(2 C) between -58F to -4F / 248 to 392F-50 to -20 C /120 to 200C 5.4F (3 C) between 392~572F(200 to 300C) About 2000 meters in open areas Current temperature 0.1,min/max and alarm limit set 1 About 90dB (300mm distance) 1 second IP66 2 pieces AA alkaline batteries, external adapter power input Transmitter about 125 hours, receiver about 1800 hours Transmitter 59(W) X 78 (H) mm, receiver 35(W) X 59 (H) mm, Curved probe: 3.5() x 150(L) mm, tip 2.2() x 10(L) mm, cable length 1200mm. Straight probe: 3.5() x 51(L) mm, cable length 1200mm. Transmitter 90 (W) x 119(H) X 28(D)mm , receiver 52 (W) x 113(H) X 28(D)mm Main part 32 ~ 122 F/0 ~ 50 C, cable 700F/371C, probe handle 644F/340C 3 pieces curved probes, 1 piece straight probe, 1 piece air clip. Wireless distance Display resolution Alarm sound volume Unit reading update Receiver reading update 30 seconds Water resistant rating Power Battery life Display size Probe Product size Working temperature Attachment Operation 1. Insert all the probes with the correct number. Connect the external power. 2. Press [ON-OFF] button to turn on the unit, the backlight will turn on 10 seconds. 3. Press [ON-OFF] button and hold for 3 seconds to turn off the unit. 4. Press [ON-OFF] button and hold for 10 seconds then release to reset the unit. Select temperature unit Press [C/F] button to select the temperature unit. Low and high temperature alarm setting 1. Press [CH] button to select the channel for alarm setting. All the icons flashing that you selected. 2. Press [SET] button to enter alarm on-off setting. Press [] or [] button to set the alarm on or off. 3. Press [SET] button once again to enter high alarm limit setting mode, high alarm value will be flashing. Press [] or [] button to set the high alarm limit. the low alarm limit. 4. Press [SET] button once again to enter low alarm limit setting mode, low alarm value will be flashing. Press [] or [] button to set 5. Press [SET] button once again to finish the alarm setting. 6. If the temperature reading is out of the limited, the alarm will sound, the LOW or HIGH icon flash, press any key to stop the alarm sound, the low alarm or high alarm icon will be flashing continue. 7. Alarm sound: the channel 1 alarm sound is di - - -, the channel 2 alarm sound is di di - -, the channel 3 alarm sound is di di di -, the channel 4 alarm sound is di di di di .

* If the both alarms sound active, the last alarm sound will be instead the before one.

* The default low alarm value is 32F, the default high alarm value is 160F, Backlight control 1) Press [

] button to switch backlight on or off. The backlight will be turn on 20 seconds, and then turn off automatically.

, it mean that the alarm sound is off. Volume adjustment 1. Press [VOL] button to adjust volume level. 2. When the volume class is 3. When power up, the sound volume level is the third class. Calibration 1) Press [CH] button to select the channel for calibrate. 2) Press [CAL] button to enter the calibration mode, CAL flash, press [] or [] button to set reading error. 3) Press [CAL] button again to exit the calibration mode. The errors adjust range is -4~4F.

] button to turn on or off the wireless function. When power on, transmission function is on. Wireless control 1. Press [

Receiver control 1. Press [

2. Press [

3. Press [

4. Press [VOL] button to adjust volume level. 5. When the unit alarm, press any button to stop the alarm sound. This situation will send back to the transmitter and mute the alarm

] button to turn on the unit.

] button to turn on the backlight 20 seconds.

] button and hold for 3 seconds to turn off the unit. sound. Code rematch 1. The transmitter has already been synchronized with the receiver at ex-factory setting. If rematch is needed, press and hold [

button for 5 seconds. Rematch mode would start and Sync icon will appear in the display. 2. Press and hold [VOL] button for 5 seconds to start rematch. 3. The units would restore the code automatically and return to normal mode. NOTE:

1. Clean the probe immediately with cleaning wipes after each measurement to avoid cross contamination. 2. Do not expose thermometer to temperatures over 50C/ 122 F or use in ovens, otherwise incorrect readings or damage to the thermometer may result. ERROR SYMBOLS:

Symbol EXT POWER CAL Description Full battery Low battery Battery level indication Power adapter connecting Calibrating SET TEMP Fan connecting LLL.L HHH.H The reading is out of low range(-58 F -50C) 1.Sensor short circuit 2.The reading is out of high range (572 F/300C) 1.The sensor open circuit 2.The sensor probe is not connect NO PROBE!

Action required Replace the battery with the same type

(75%/50%/25%) Keep the measurement above low range 1.Return the thermometer for repair 2. Keep the measurement below high range 1.Return the thermometer for repair 2.Connect the sensor probe correctly 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. This equipment complies with the FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body. This device complies with Industry Canada Licence-exempt RSSs. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference, including interference that m ay cause undesired operation of the device. Le prsent appareil est conforme aux CNR dIndustrie Canada applicable 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. Changes or Modifications not expressly approved by the party responsible could void the users authority to operate this device. 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Transmitter: FCC ID: 2AI67-S4T, IC: 22116- S4T. Receiver: FCC ID: 2AI67-S4R, IC: 22116- S4R. Mark Wu 2019OCT15

Radiance Instruments Ltd. Agent Authorization Letter 2019-11-06 MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, the undersigned, hereby authorize (The Hong Kong Standards and Testing Centre Limited) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Print nameMark Wu Title: Engineering Supervisor Signature:

Radiance Instruments Ltd. Long Term Confidentiality Request Letter 2019-11-06 MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (SMOKE X4 / TMW023-4P /FCC ID:

2AI67-S4T) To Whom It May Concern:

This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the

(block diagram/schematics/PCB/BOM/operational description) required to be submitted with this application be permanently withheld from public review. The above documents are company proprietary information that could never get into the possession of my competition. Please contact me if there is any information you may need. Sincerely, Print nameMark Wu Title: Engineering Supervisor Signature: