MG3-H24428Temperature and Humidity Sensor

Zigbee 3.0 Temperature and Humidity Sensor H24428 (THZB1) SPECIFICATIONS Frequency: 2.4GHz Zigbee (IEEE 802.15.4) Battery Type: CR2477 Battery Battery Life: 3 Years Operating Temperature: -10 ̊C to 50 ̊C Temperature Reporting: 0 ̊C to 50 ̊C (± 0.5) Operating Humidity: 0 % to 100 % non-condensing Humidity Reporting: 20 % to 80 % (± 2) Dimension: Ø 56 mm x 16.7 mm Ingress Protection: IP20 PAIRING SENSOR This Temperature and Humidity sensor needs to be paired before installation. 1. Pull the exposed plastic tab from the sensor. (Figure 1) 2. The LED indicator will be blink three times in green color to indicate a successful booting. (Figure 2) 3. The LED will blink three times every 2-3 seconds in amber color while scanning the Zigbee network. 4. If network is found and successfully joined, the LED will be lit for 1 second in amber color followed by a short blink in green color. 5. If network is not found after 3 minutes, the sensor will go into sleep mode and the LED will blink in amber color every 1 minute. You need to reset the sensor to trigger a pairing process, and then sensor will repeat steps from 2 to 4. Note: MAC address of the Sensor can be found on the QR code by scanning it with your mobile phone. Reset to Factory Defaults & Reboot 1. Remove from the rear cover if it has been assembled. 2. Remove the battery for at least 5 seconds. 3. Press and hold down button while re-inserting the battery. (Figure 2) 4. Release the button within 3 seconds after insert the battery. INSTALLATION 1. Use the provided double-sided tape on the mounting bracket. (Figure 1) 2. Tear off the protective film of the double-sided tape. 3. Attach the sensor to the desired area. Press firmly and hold in place for a few seconds (Figure 3). * Keep the surface clean and dry before attach the sensor. * Do not install on the metal surface, it will affect the wireless communication range. OPERATION The LED will blink every 5 minutes in green color to indicate the sensor is working properly. Figure 1 Figure 2 LED Indicator Button Figure 3 Battery Tab Mounting bracket MAINTENANCE – REPLACE THE BATTERY When the battery is low, a signal will be sent to the control panel. The LED will blink every 2 minutes in red. To insert or replace the battery: 1. Rotate the sensor in counterclockwise and detach it from the mounting bracket. (Figure 4) 2. Remove the battery. (Figure 5) 3. Press and hold the button for 5 seconds, then release the button. 4. Insert a new CR2477. 5. Fit the sensor on the mounting bracket, rotate and lock in position. (Figure 6) WARNING: Failure to follow these warnings and instructions can lead to heat generation, rupture, leakage, explosion, fire, or other injury, or damage. Do not insert the battery into the compartment in the wrong direction. Always replace the battery with the same or equivalent type (see Specifications on section 1). Never recharge or disassemble the battery. Never place the battery in fire or water. Always keep batteries away from small children. If batteries are swallowed, promptly see a doctor. Always dispose and/or recycle used batteries in accordance with the hazardous waste recovery and recycling regulations for your location. Your city, state, or country may also require you to comply with additional handling, recycling, and disposal requirements. COMPLIANCE STATEMENT 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 has been tested and found to comply with the limits for Class B digital devices, 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 instruction manual, 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: • Re‐orient or relocate the receiving antenna • Increase the separation between the equipment and receiver • Connect the equipment to an outlet on a different circuit from the receiver • Consult the dealer or an experienced radio/TV contractor for help. 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. FCC Radiation Exposure Statement This equipment complies with FCC RF radiation exposure limits sent 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. The antennas used for this transmitter must be installed to provide a separation distance of at least 20cm from all persons and must not be co‐located or operation in conjunction with any other antenna or transmitter. Industry Canada requirements This device complies with Industry Canada license‐exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference and (2) this device must accept any interference, including interference that may cause undesired operation of the device Le present appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compr…

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Hyundai C‐Tech, Inc. dba HCT America, Inc. 1726 Ringwood Avenue San Jose, CA 95131 TEL: +1.510.933.8848 || Fax: +1.510.933.8849 Page 1 of 1 11‐17‐2022 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA FCC Agent Authorization Letter Applicant Universal Electronics, Inc. Model Name H24428 Product Type Temperature and Humidity Sensor FCC ID MG3‐H24428 We, the undersigned, hereby authorize Hyundai C‐Tech, Inc. dba HCT America Inc. to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by Hyundai C‐Tech, Inc. dba HCT America Inc. on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti‐Drug Abuse Act of 1988, 21 U.S.C. 853(a). We recognize that we are still responsible for the terms and conditions outlined in the HCT America Client Services Agreement. This authorization is valid until further written notice from the applicant. Sincerely, Jesse Mendez Sr. Electrical Core Engineer Universal Electronics, Inc. 201 East Sandpointe Ave 7 th Floor Santa Ana, CA 92707, U.S.A. [email protected]

Hyundai C‐Tech, Inc. dba HCT America, Inc. 1726 Ringwood Avenue San Jose, CA 95131 TEL: +1.510.933.8848 || Fax: +1.510.933.8849 Page 1 of 1 11‐17‐2022 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA FCC Confidentiality Request Letter Applicant Universal Electronics, Inc. Model Name H24428 Product Type Temperature and Humidity Sensor FCC ID MG3‐H24428 Pursuant to the provisions of Section 0.457 and 0.459 of the commission’s rules (47 CFR 0.457, 0.459), we are requesting the Commission to withhold the following attachments as confidential document from public disclosure indefinitely.  Block Diagram  Schematics  Technical Operation Description The above‐mentioned documents contain detailed system and equipment description that are considered propriety information in operation of the equipment. The public disclosure of the above documents might be harmful to our company and would give competitors an unfair advantage in the market. In addition to the above‐mentioned documents, pursuant to Public Notice DA 04‐1705 of the Commission’s policy, in order to comply with marketing regulations in 47 CFR §2.803 ad the importation rules in 47 CFR §2.1204 while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices. We request that the Commission to grant Short‐Term Confidentiality on the following attachments for 180 days after the grant as outlined in Public Notice DA 04‐1705.  Internal Photos  External Photos  Test Setup Photos  User’s Manual Sincerely, Jesse Mendez Sr. Electrical Core Engineer Universal Electronics, Inc. 201 East Sandpointe Ave 7 th Floor Santa Ana, CA 92707, U.S.A. [email protected]

1 / 4 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA. TEL: +1-510-933-8848 FAX: +1-510-933-8849 APPENDIX B.1 PHOTOGRAPHS OF EUT EXTERNAL PHOTOS Applicant Universal Electronics, Inc. Model Name H24428 FCC ID MG3-H24428 IC ID 2575A-H24428 Reference Test Report No.: HA220725-UEI-006-R04 2 / 4 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA. TEL: +1-510-933-8848 FAX: +1-510-933-8849 Front View Rear View 3 / 4 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA. TEL: +1-510-933-8848 FAX: +1-510-933-8849 Left Side View Right Side View 4 / 4 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA. TEL: +1-510-933-8848 FAX: +1-510-933-8849 Top View Bottom View

1 / 3 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA. TEL: +1-510-933-8848 FAX: +1-510-933-8849 APPENDIX B.2 PHOTOGRAPHS OF EUT INTERNAL PHOTOS Applicant Universal Electronics, Inc. Model Name H24428 FCC ID MG3-H24428 IC ID 2575A-H24428 Reference Test Report No.: HA220725-UEI-006-R04 2 / 3 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA. TEL: +1-510-933-8848 FAX: +1-510-933-8849 Internal View 1 Internal View 2 3 / 3 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA. TEL: +1-510-933-8848 FAX: +1-510-933-8849 Mainboard View 1 Mainboard View 2

MPE REPORT F C C APPLICANT Universal Electronics Inc MODEL NAME H24428 FCC ID MG3-H24428 REPORT NUMBER HA220725-UEI-006-R05 Report No.: HA220725-UEI-006-R05 1 / 7 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA TEL: +1-510-933-8848 FAX: +1-510-933-8849 T E S T R E P O R T Date of Issue October 20, 2022 Test Site Hyundai C-Tech, Inc. dba HCT America, Inc. 1726 Ringwood Ave, San Jose, CA 95131, USA Applicant Universal Electronics Inc Applicant Address 201 East Sandpointe Ave 7 th Floor, Santa Ana, CA 92707, U.S.A. FCC ID MG3-H24428 Model Name H24428 EUT Type Temperature and Humidity Sensor FCC Classification Digital Transmission System (DTS) FCC Rule Part(s) Part 1 (§1.1310), Part 2 (§2.1091) Test Procedure KDB 447498 D01 v06 The device bearing the trade name and model specified above, has been shown to comply with the applicable technical standards as indicated in the measurement report and was in accordance with the procedures specified in §2.947. The results in this report apply only to the product which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. Hyundai C-Tech, Inc. dba HCT America, Inc. certifies that no party to application has been denied the FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C 862 Tested By Reviewed By Yongsoo Park Sunwoo Kim Test Engineer Technical Manager Report No.: HA220725-UEI-006-R05 2 / 7 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA TEL: +1-510-933-8848 FAX: +1-510-933-8849 REVISION HISTORY The revision history for this document is shown in table. TEST REPORT NO. DATE DESCRIPTION HA220725-UEI-006-R05 October 20, 2022 Initial Issue Report No.: HA220725-UEI-006-R05 3 / 7 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA TEL: +1-510-933-8848 FAX: +1-510-933-8849 TABLE OF CONTENTS 1. EUT DESCRIPTION ............................................................................................................................................ 4 2. INTRODUCTION ................................................................................................................................................ 5 2.1. LIMIT ..................................................................................................................................................... 5 2.2. MAXIMUM PERMISSIBLE EXPOSURE PREDICTION .................................................................................... 5 3. RESULT ............................................................................................................................................................ 6 3.1. MPE Calculation ..................................................................................................................................... 6 3.2. SUMMARY OF RESULTS .......................................................................................................................... 6 Report No.: HA220725-UEI-006-R05 4 / 7 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA TEL: +1-510-933-8848 FAX: +1-510-933-8849 1. EUT DESCRIPTION Model H24428 EUT Type Temperature and Humidity Sensor Power Supply 3 V d.c. (3 V d.c. Non-rechageable Lithium Battery) RF Specification IEEE 802.15.4 Transmitter Chain 1 Antenna Specification 1) Antenna Type : PCB trace Peak Gain : 2.17 dBi Operating Environment Indoor Operating Temperature -10 °C ~ +50 °C Note(s) : 1. Antenna information is based on the document provided. Report No.: HA220725-UEI-006-R05 5 / 7 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA TEL: +1-510-933-8848 FAX: +1-510-933-8849 2. INTRODUCTION 2.1. LIMIT The limit for Maximum Permissible Exposure (MPE), specified in FCC Rule Part §1.1310 listed in the table below, shall be used to evaluate the environmental impact of human exposure to radio frequency (RF) radiation specified in §1.1310 (b) Frequency Range (MHz) E- Field Strength (V/m) H- Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (Minutes) (A) Limits for Occupational / Controlled Exposure 0.3 – 3.0 614 1.63 *100 6 3.0 – 30 1842 / f 4.89 / f *900 / f 2 6 30 – 300 61.4 0.163 1.0 6 300 – 1,500 - - f / 300 6 1,500 – 100,000 - - 5 6 (B) Limits for General Population / Uncontrolled Exposure 0.3 – 1.34 614 1.63 *100 30 1.34 – 30 824 / f 2.19 / f *180 / f 2 30 30 – 300 27.5 0.073 0.2 30 300 – 1,500 - - f / 1500 30 1,500 – 100,000 - - 1.0 30 f = frequency in MHz, * = Plane-wave equivalent power density 2.2. MAXIMUM PERMISSIBLE EXPOSURE PREDICTION Prediction of MPE limit at a given distance S = PG 4πR² S : Power density (mW/cm 2 ) P : Output power to antenna (mW) G : Antenna gain in linear scale R : Distance between the center of radiator and observation point (cm) Report No.: HA220725-UEI-006-R05 6 / 7 This document may not be copied or reproduced (reprinted) without writ…

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RF TEST REPORT F C C / I S E D APPLICANT Universal Electronics Inc. MODEL NAME H24428 FCC ID MG3-H24428 ISED ID 2575A-H24428 REPORT NUMBER HA220725-UEI-006-R04 Report No.: HA220725-UEI-006-R04 1 / 43 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA TEL: +1-510-933-8848 FAX: +1-510-933-8849 T E S T R E P O R T Date of Issue October 20, 2022 Test Site Hyundai C-Tech, Inc. dba HCT America, Inc. 1726 Ringwood Ave, San Jose, CA 95131, USA Applicant Universal Electronics Inc Applicant Address 201 East Sandpointe Ave 7 th Floor, Santa Ana, CA 92707, U.S.A. FCC ID MG3-H24428 ISED ID 2575A-H24428 Model Name H24428 EUT Type Temperature and Humidity Sensor Modulation Type OQPSK FCC Classification Digital Transmission System (DTS) FCC Rule Part(s) Part 15.247 ISED Rule Part(s) RSS-247 Issue 2 (February 2017), RSS-Gen Issue 5 (March 2019) Test Procedure ANSI C63.10-2013, KDB 558074 D01 v05r02 The device bearing the trade name and model specified above, has been shown to comply with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures required. The results of testing in this report apply only to the product which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. Hyundai C-Tech, Inc. dba HCT America, Inc. certifies that no party to application has been denied the FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C 862 Tested By Reviewed By Yongsoo Park Sunwoo Kim Test Engineer Technical Manager Report No.: HA220725-UEI-006-R04 2 / 43 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA TEL: +1-510-933-8848 FAX: +1-510-933-8849 REVISION HISTORY The revision history for this document is shown in table. TEST REPORT NO. DATE DESCRIPTION HA220725-UEI-006-R04 October 20, 2022 Initial Release Report No.: HA220725-UEI-006-R04 3 / 43 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA TEL: +1-510-933-8848 FAX: +1-510-933-8849 TABLE OF CONTENTS 1. GENERAL INFORMATION .................................................................................................................................. 4 2. METHODOLOGY ............................................................................................................................................... 6 3. INSTRUMENT CALIBRATION .............................................................................................................................. 6 4. FACILITIES AND ACCREDITATIONS ...................................................................................................................... 7 5. ANTENNA REQUIREMENTS ............................................................................................................................... 8 6. MEASUREMENT UNCERTAINTY ......................................................................................................................... 9 7. DESCRIPTION OF TESTS ................................................................................................................................... 10 8. SUMMARY OF TEST RESULTS ........................................................................................................................... 22 9. TEST RESULT ................................................................................................................................................... 25 9.1. 6 dB BANDWIDTH / 99% BANDWIDTH MEASUREMENT.......................................................................... 25 9.2. OUTPUT POWER .................................................................................................................................. 27 9.3. POWER SPECTRAL DENSITY................................................................................................................... 28 9.4. CONDUCTED BAND EDGE & SPURIOUS EMISSIONS ................................................................................ 29 9.6. RADIATED RESTRICTED BAND EDGES ..................................................................................................... 37 9.7. RECEIVER SPURIOUS EMISSION ............................................................................................................. 38 10. LIST OF TEST EQUIPMENT ............................................................................................................................. 40 APPENDIX A. TEST SETUP PHOTOS ...................................................................................................................... 41 APPENDIX B. PHOTOGRAPHS OF EUT .................................................................................................................. 42 Report No.: HA220725-UEI-006-R04 4 / 43 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA TEL: +1-510-933-8848 FAX: +1-510-933-8849 1. GENERAL INFORMATION EUT DESCRIPTION Model H24428 EUT Type Temperature and Humidity Sensor Power Supply 3 V d.c. (3 V d.c. No…

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Test Report No.: HA220725-UEI-006-R04 APPEXDIX A 1 / 4 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA. TEL: +1-510-933-8848 FAX: +1-510-933-8849 APPENDIX A TEST SETUP PHOTOS Applicant Universal Electronics Inc. Model Name H24428 FCC ID MG3-H24428 IC ID 2575A-H24428 Reference Test Report No.: HA220725-UEI-006-R04 Test Report No.: HA220725-UEI-006-R04 APPEXDIX A 2 / 4 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA. TEL: +1-510-933-8848 FAX: +1-510-933-8849 Radiated Emission Test Setup : Below 1 GHz 9 kHz – 30 MHz 30 MHz – 1 GHz Test Report No.: HA220725-UEI-006-R04 APPEXDIX A 3 / 4 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA. TEL: +1-510-933-8848 FAX: +1-510-933-8849 Radiated Emission Test Setup : Above 1 GHz 1 GHz – 18 GHz 18 GHz -25 GHz Test Report No.: HA220725-UEI-006-R04 APPEXDIX A 4 / 4 This document may not be copied or reproduced (reprinted) without written consent by Hyundai C-Tech, Inc. dba HCT America, Inc. Hyundai C-Tech, Inc. dba HCT America, Inc., 1726 Ringwood Avenue, San Jose, CA 95131, USA. TEL: +1-510-933-8848 FAX: +1-510-933-8849 RF Conducted Test Setup RF Conducted Test