WA5WA33BHeat Index Sensor

Shenzhen Fine Offset Electronics Co., Ltd. Device Heat Index Sensor Company name Shenzhen Fine Offset Electronics Co., Ltd. Grantee code WAS FCC ID WASWA33B FR N 0017765033 Contact name Henry Xu Address A, 4/F, Bldg.C, Dist.A, Minzhu Jiujiu Ind. City, Xihuan Rd., Shajing St., Baoan Dist. Shenzhen, Guangdong, China Telephone number 008675586106171 E- mail [email protected] Chipset/module information CMT2119B Operating System (if applicable) N/A Storage Capacity (hard drive or other N/A permanent memory storage, if applicable) Item 1. The device is able to install software/program installation? 口Yes,go to Item 2. 回No.In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky cybe「secu「ity or anti-vi「us software. Item 2. Technical Requirements for Kaspersky Cybersecurity Softwa「e: ＃ General Requirements (For all Devices) Yes / No or N/A I Comments Internet connection for activation and updates (For all Operating I N/A Systems Code 00018768 Ed. 1

Shenzhe n Fine Offset Elect ronics Co., Ltd. Family models declaration letter. 8/5/2026 We Company: Shenzhen Fine Offset Electronics Co., Ltd. Address: A, 4/F, Bldg.C, Dist.A, Minzhu Jiujiu Ind. City, Xihuan Rd., Shajing St., Baoan Dist. Shenzhen, Guangdong, China Product: Heat Index Sensor Model Name: WH51Hl Family Model: WA33B FCC ID: WA5WA33B All models are the same circuit and RF module, except the Logo and casing color. We (Shenzhen Fine Offset Electronics Co., Ltd.) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit desi伊1, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.), same mechanical structure and desigi1 (including product enclosure, materials, etc.), All models are the same circuit and RF module, except for the packaging is different in different sales areas. Thanl<s Sincerely, Signature曰m序妇 [Name] Henry Xu [Title] manager [email protected]

TCBCALLpágina1 FileFCCID:WA5WA33B PleaseuploadanexhibitthatexplainshowdoestheTCBverifythenewagentinformation: 1-IstheaddressoftheagentavalidphysicalUSmailingaddress(notaUSpostofficebox,notavirtualmailbox,notP.O.Boxes,notavacantlot,notapublicbuilding, etc.) ○Wehavecheckediftheaddressexistsinarealandpotentialbuilding(Googlemaps)+officialUSregister,afterthisverificationandtheevidencebelowwecan guaranteethefollowing: notaUSpostofficebox notavirtualmailbox notP.O.Boxes notavacantlot notapublicbuilding(note) ►WecheckedtheFCCFRNSearchbasedontheinformationprovidedbythegrantee. Ontheofficialregisterfrom:https://opencorporates.com/companies/us_il/LLC_12842678 Ingoogle: TCBCALLpágina2 Bankinformation TCBCALLpágina3 TCBCALLpágina4 TCBCALLpágina5 TCBCALLpágina6 TCBCALLpágina7 TCBCALLpágina8 TCBCALLpágina9 ►CONCLUSIONbyTCB:TheASOPdefinedandprovidedbygranteeisVALIDandconfirmed.Thereforetheexhibit"080626_WA5WA33B"includedinthefileisok. 2-IstheagentphysicallylocatedatthatvalidUSaddresssuchthattheagentcanbelegallyservedatthataddress? Yes,checkabove 3-Hasthelistedagentclearlyagreedinwritingtoserveastheagentforthegranteeatthataddress? Yes,itisincludedintheexhibit"080626_WA5WA33B" >

C5266091_X8—Ed.1 Letter of Authorization < Shenzhen Fine Offset Electronics Co., Ltd. > Company: Shenzhen Fine Offset Electronics Co., Ltd. Address: A , 4/F, Bldg.C, Dist.A, Minzhu Jiujiu Ind. City, Xihuan Rd., Shajing St., Baoan Dist. Shenzhen, Guangdong, China Product Name: Heat Index Sensor Model Number: WH51HI, WA33B FCC Identifier: WA5WA338 W e authorize LGAI Technological Center S.A., Ronda de la Font delCarme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. A ny individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. W e 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 issu es 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. Name: Henry Xu Date: 05/08/2026 Title: manager Signature of applicant: H -e Y'\ Y沙 次， 1/1

刘州秀 2026/4/2 WA31-002 技术要求： 1.）后壳颜色：白色 2.）丝印颜色：PANTON 8402C 3.）字体图案清晰，不可有不良现象。 4.) 丝印字体图案的大小及位置依图档。 WA33B WA33B 后壳丝印 产品名称:FG-WA33B-AMB1 PLWA33B00200 FCC ID:WA5WA33B 丝印内容： 24.76 mm 9.61 mm 4.41 mm 1 1 . 7 5 m m 1.94 mm FCC ID:WA5WA33B 1 2 3 4 刘州秀 2026/1/21 WA31-003 技术要求： 1.）电池门颜色：白色 2.）丝印颜色：PANTON 8402C 3.）字体图案清晰，不可有不良现象。 4.) 丝印字体图案的大小及位置依图档。 WA33B WA33B 电池门丝印 产品名称:FG-WA33B-AMB1 PLWA33B00300 5 . 5 0 7 . 5 0 m m 48.60 mm 5 . 6 4 m m WH51HI 915 MHz 3 2 . 3 6 m m 1 2 3 4 WH51HI 915 MHz 丝印内容:

FCC ID: WA5WA33B Maximum Permissible Exposure (MPE) According to KDB 447498 D01 General RF Exposure Guidancev06&FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b) According to 2.1091 Limits for Maximum Permissible Exposure (MPE) MPE Calculation Method E (V/m) ＝ d G P * * 30 Power Density: Pd (W/m²) ＝ 377 2 E E ＝ Electric field (V/m) P ＝ Average RF output power (W) G ＝ EUT Antenna numeric gain (numeric) d ＝ Separation distance between radiator and human body (m) The formula can be changed to Pd ＝ 2 *377 **30 D GP From the EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained. Measurement Result Operation Frequency: 915MHz Antenna Type: Spring Antenna Antenna gain: 2.15dBi, R=20cm mW=10^(dBm/10) Transmit power Frequency (MHz) EIRP power (dBuV/m) EIRP power (dBm) EIRP power (mW) 915 87.69 -7.57 0.175 EIRP=E-104.8+20log(D) Maximum Permissible Exposure: Channel Freq. (MHz) modulation EIRP power (dBm) EIRP power (mW) Tune-up power (dBm) Max tune-up power (dBm) Evaluation result (mW/cm2) Power density Limits (mW/cm2 ) 915 FSK -7.57 0.175 -7±1 -6 0.000082 0.61 Conclusion: For the max result : 0.000082≤0.61 for Max Power Density, compliance RF exposure. Signature: Date: 2026-07-28 NAME AND TITLE (Please print or type): alex li/Manager COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ No. 24 Xinfa East Road, Xiangshan Community, Xinqiao Street, Baoan District, Shenzhen, Guangdong, People's Republic of China

Report No.: N26040706502E ` Version.1.3 Page 1 of 28 RADIO TEST REPORT FCC ID: WA5WA33B Product： Heat Index Sensor Trade Mark： N/A Model Name： WH51HI Family Model： WA33B Report No.： N26040706502E Prepared for Shenzhen Fine Offset Electronics Co., Ltd. A, 4/F, Bldg.C, Dist.A, Minzhu Jiujiu Ind. City, Xihuan Rd., Shajing St., Baoan Dist. Shenzhen, Guangdong, China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. No. 24 Xinfa East Road, Xiangshan Community, Xinqiao Street, Baoan District, Shenzhen, Guangdong, People's Republic of China Tel. 0755-2320 0050 Website: http://www.ntek.org.cn Report No.: N26040706502E ` Version.1.3 Page 2 of 28 TEST RESULT CERTIFICATION Applicant’s name ................. : Shenzhen Fine Offset Electronics Co., Ltd. Address ................................. : A, 4/F, Bldg.C, Dist.A, Minzhu Jiujiu Ind. City, Xihuan Rd., Shajing St., Baoan Dist. Shenzhen, Guangdong, China Manufacturer's Name .......... : Shenzhen Fine Offset Electronics Co., Ltd. Address ................................. : A, 4/F, Bldg.C, Dist.A, Minzhu Jiujiu Ind. City, Xihuan Rd., Shajing St., Baoan Dist. Shenzhen, Guangdong, China Product description Product name............................ : Heat Index Sensor Model and/or type reference : WH51HI Family Model .......................... WA33B Rating(s) ................................ : DC 3V from battery Standards ............................. : FCC Part15.249 Test procedure ............................... : ANSI C63.10-2020 + Cor. 1-2023+C63.10a-2024 + Errata to C63.10a-2024 This device described above has been tested by NTEK, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of NTEK, this document may be altered or revised by NTEK, personnel only, and shall be noted in the revision of the document. Test Sample Number................: S2606160247-1# Date of Test ........................................... : Date (s) of performance of tests ............. : Jun. 16, 2026 ~ Jul. 27, 2026 Date of Issue .......................................... : Jul. 27, 2026 Test Result.............................................. : Pass Prepared By : Reviewed By : Approved By : Allen Liu (Project Engineer) Aaron Cheng (Supervisor) Alex Li (Manager) Report No.: N26040706502E ` Version.1.3 Page 3 of 28 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 4 1.1 TEST FACILITY 5 1.2 MEASUREMENT UNCERTAINTY 5 2 . GENERAL INFORMATION 6 2.1 GENERAL DESCRIPTION OF EUT 6 2.2 DESCRIPTION OF TEST MODES 8 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 9 2.4 DESCRIPTION OF SUPPORT UNITS (CONDUCTED MODE) 10 2.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 11 3 . ANTENNA REQUIREMENT 13 3.1 STANDARD REQUIREMENT 13 3.2 EUT ANTENNA 13 3.3 CONDUCTED EMISSION MEASUREMENT 14 3.3.1 POWER LINE CONDUCTED EMISSION LIMITS 14 3.3.2 TEST PROCEDURE 15 3.3.3 DEVIATION FROM TEST STANDARD 15 3.3.4 TEST SETUP 15 3.2.5 TEST RESULT 16 3.4 RADIATED EMISSION MEASUREMENT 17 3.4.1 RADIATED EMISSION LIMITS 17 3.4.2 TEST PROCEDURE 18 3.4.3 DEVIATION FROM TEST STANDARD 18 3.4.4 TEST RESULTS (BELOW 30MHZ) 20 3.4.5 TEST RESULTS (BELOW 1000 MHZ) 21 3.4.6 TEST RESULTS (ABOVE 1000 MHZ) 23 3.4.7 TEST RESULTS (RESTRICTED BANDS REQUIREMENTS) 25 4. BANDWIDTH TEST 27 4.1 TEST PROCEDURE 27 4.2 DEVIATION FROM STANDARD 27 4.3 TEST SETUP 27 6. TEST RESULTS 28 Report No.: N26040706502E ` Version.1.3 Page 4 of 28 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15, Subpart C (15.249) Standard Section Test Item Judgment Remark 15.207 Conducted Emission N/A 15.203 Antenna Requirement Pass 15.249 15.209 Radiated Spurious Emission Pass 15.249(a) Fundamental Measurement Pass 15.205 Band Edge Emission Pass 15.215 Occupied Bandwidth Pass Report No.: N26040706502E ` Version.1.3 Page 5 of 28 1.1 TEST FACILITY Shenzhen NTEK Testing Technology Co., Ltd Add. : No. 24 Xinfa East Road, Xiangshan Community, Xinqiao Street, Baoan District, Shenzhen, Guangdong, People's Republic of China FCC FRN Registration No.:463705; FCC FRN Designation Number: CN1184 IC Registration No.:9270A CNAS Registration No.:L5516 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 Conducted Emission Test ±1.38dB 2 RF power,conducted ±0.16dB 3 Spurious emissions,conducted ±0.21dB 4 All emissions,radiated(<1G) ±4.68dB 5 All emissions,radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% 8 Occupied bandwidth ±4.7% 9 All emissions, radiated(9KHz~30MHz) ±6dB Report No.: N26040706502E ` Version.1.3 Page 6 of 28 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Equipment Heat Index Sensor Trade Mark N/A Model Name WH51HI Family Model WA33B Model Difference All models are the same circuit and RF module, except for the packaging is different in different sales areas. Product Description The EUT is a Heat Index Sensor Operation Frequency: 915MHz Modulation Type: FSK Antenna Designation: Spring Antenna Antenna Gain(Peak) 2.15 dBi Channel List Please refer to the Note 2. Adapter N/A Battery DC 2*1.5AA Hardware version WHP0289A1V01 Firmware version N/A Software version WA33_HI_0x000FE7DB Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. Report No.: N26040706502E ` Version.1.3 Page 7 of 28 2. Channel Frequency(MHz) 01 915 3. Table for Filed Antenna Ant. Brand Model Name Antenna Type Connector Gain (dBi) NOTE 1 N/A N/A Spring Antenna N/A 2.15 Antenna Report No.: N26040706502E ` Version.1.3 Page 8 of 28 2.2 DESCRIPTION OF TEST MODES To investigate the maximum EMI emission characteristics generates from EUT, the test system was pre-scanning test…

Text truncated - open the document above for the full version.

GBT-915 915MHzSpringAntennaSpecification Model：GBT-915-0.5*4.5*8.5*9.75N-8*3.6L TechnicalSpecifications： Weight(g):0.236±0.05 Hight(mm):8.5 Diameter(mm)：0.5±0.02 AntennaColor：Copper Material：Brass ProductDescription： ModelGBT-915-0.5*4.5*8.5*9.75N-8*3.6Lisadedicatedantenna designedfor915 MHzwirelessdatatransmissionsystems.Itboastsprecise dimensions,compactformfactor,ingeniousstructure,easyinstallation andstableperformance,alongwithexcellentanti-vibrationand anti-agingcapabilities. Allspringsarestrictlyinspectedbyourin-housequality departmentpriortodelivery. DimensionDrawing： 15F0 GBT-915-0.5*4.5*8.5*9.75N-8*3.6L SpringAntennaWirediameter:0.5mm;Numberofcoils:9.75;Material: Brass SHENZHENZHIGUANMOULD&HARDWARECO.,LTD. Address:Room103,Building1,No.9BaotengStreet,YixinCommunity, PingdiSubdistrict,LonggangDistrict,Shenzhen Mobile:13590380371 Tel:0755-89617759 Fax:0755-89617759 E-mail:[email protected]