HTT202502221F02 RF Exposure-MPE
Shenzhen Wenhui Technology Development Co., Ltd. WHMC01 Intelligent sensing 2AR95-WHMC01 2AR95WHMC01 whmc01
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Document DEVICE REPORTGetApplicationAttachment.html?id=8199629Shenzhen HTT Technology Co., Ltd. RF Exposure MPE Report Reference No...................... : HTT202502221F02 FCC ID............................................. : 2AR95-WHMC01 Compiled by ( position+printed name+signature) . : File administrators Supervised by ( position+printed name+signature) . : Project Engineer Approved by ( position+printed name+signature) . : RF Manager Date of issue .................................... : Feb. 25, 2025 Testing Laboratory Name ..............: Shenzhen HTT Technology Co.,Ltd. Address............................................ : Applicant's name............................: 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Shenzhen Wenhui Technology Development Co., Ltd. 401, No.7 Xingye 3rd Road, Fenghuang Community, Address............................................ : Fuyong Street, Baoan, Shenzhen 47CFR §1.1310 Standard ........................................... : 47CFR §2.1091 KDB447498 D01 General RF Exposure Guidance v06 Shenzhen HTT Technology Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HTT Technology Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HTT Technology Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description .....................: Intelligent sensing Manufacturer .................................... : Shenzhen Wenhui Technology Development Co., Ltd. Trade Mark ........................................ N/A Model/Type reference ...................... : WHMC01 Rating ............................................... : DC 3.0V From Battery Result ............................................... : PASS Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 1 of 8 Report No.: HTT202502221F02 TEST REPORT Page 2 of 8 Equipment under Test : Intelligent sensing Model /Type Listed Models Model difference : WHMC01 : WHMC06, WHMC02, WHMC03, WHMC04, WHMC05, WHMC07, WHMC08, WHMC09, WHMC10 : The PCB board, circuit, structure and internal of these models are the same, Only model number is different for these model. Applicant : Shenzhen Wenhui Technology Development Co., Ltd. Address : 401, No.7 Xingye 3rd Road, Fenghuang Community, Fuyong Street, Baoan, Shenzhen Manufacturer : Shenzhen Wenhui Technology Development Co., Ltd. Address : 401, No.7 Xingye 3rd Road, Fenghuang Community, Fuyong Street, Baoan, Shenzhen Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 2 of 8 Report No.: HTT202502221F02 Page 3 of 8 Contents 1 TEST STANDARDS ................................................... 4 2 SUMMARY .............................................................. 5 2.1 General Remarks 5 2.2 Product Description 5 2.3 Special Accessories 5 2.4 Modifications 5 3 TEST ENVIRONMENT 6 3.1 Address of the test laboratory 6 3.2 Test Facility 6 3.3 Statement of the measurement uncertainty 6 4 TEST LIMIT 7 4.1 Requirement 4.2 Conducted Power Results 4.3 Manufacturing tolerance 4.4 Evaluation Result 4.5 Simultaneous Transmission for SAR Exclusion 7 8 8 ! 8 5 CONCLUSION 8 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 3 of 8 Report No.: HTT202502221F02 Page 4 of 8 1 TEST STANDARDS The tests were performed according to following standards: ANSI C95.11999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. FCC KDB 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Device, RF Exposure, Equipment Authorization Procedures. FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits. FCC CFR 47 part2 2.1091: Radiofrequency radiation exposure evaluation: mobile devices Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 4 of 8 Report No.: HTT202502221F02 Page 5 of 8 2 SUMMARY 2.1 General Remarks Date of receipt of test sample : Testing commenced on : Testing concluded on : 2.2 Product Description Product Name: Model No.: Series model: Test sample(s) ID: Channel numbers: Channel separation: Modulation technology: Antenna Type: Antenna gain: Power supply: Feb. 19, 2025 Feb. 19, 2025 Feb. 25, 2025 Intelligent sensing WHMC01 WHMC06, WHMC02, WHMC03, WHMC04, WHMC05, WHMC07, WHMC08, WHMC09, WHMC10 HTT202502221-1(Engineer sample) HTT202502221-2(Normal sample) 802.11b/802.11g /802.11n(HT20): 11 802.11n(HT40):7 5MHz 802.11b: Direct Sequence Spread Spectrum (DSSS) 802.11g/802.11n(H20)/802.11n(HT40): Orthogonal Frequency Division Multiplexing (OFDM) PCB Antenna 2.50 dBi DC 3.0V From Battery 2.3 Special Accessories The following is the EUT test of the auxiliary equipment provided by the laboratory: Description Manufacturer Model Technical Parameters Certificate Provided by / / / / / / 2.4 Modifications No modifications were implemented to meet testing criteria. Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 5 of 8 Report No.: HTT202502221F02 Page 6 of 8 3 TEST ENVIRONMENT 3.1 Address of the test laboratory Shenzhen HTT Technology Co.,Ltd. 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China 3.2 Test Facility The test facility is recognized, certified, or accredited by the following organizations: FCC-Registration No.: 779513 Designation Number: CN1319 Shenzhen HTT Technology Co.,Ltd. has been listed on the US Federal Communications Commission list of test facilities recognized to perform electromagnetic emissions measurements. A2LA-Lab Cert. No.: 6435.01 Shenzhen HTT Technology Co.,Ltd. has been listed by American Association for Laboratory Accreditation to perform electromagnetic emission measurement. The 3m-Semi anechoic test site fulfils CISPR 16-1-4 according to ANSI C63.10 and CISPR 16-1-4:2010. 3.3 Statement of the measurement uncertainty The data and results referenced in this document are true and accurate. The reader is cautioned that there may be errors within the calibration limits of the equipment and facilities. The measurement uncertainty was calculated for all measurements listed in this test report acc. to TR-100028-01" Electromagnetic compatibility and Radio spectrum Matters (ERM);Uncertainties in the measurement of mobile radio equipment characteristics; Part 1" and TR-100028-02 "Electromagnetic compatibility and Radio spectrum Matters (ERM);Uncertainties in the measurement of mobile radio equipment characteristics; Part 2 " and is documented in the Shenzhen HTT Technology Co.,Ltd. quality system acc. to DIN EN ISO/IEC 17025. Furthermore, component and process variability of devices similar to that tested may result in additional deviation. The manufacturer has the sole responsibility of continued compliance of the device. Hereafter the best measurement capability for Shenzhen HTT Technology Co.,Ltd. : Test Range Measurement Uncertainty Notes Radiated Emission 9KHz~30MHz 3.12 dB (1) Radiated Emission 30~1000MHz 4.37 dB (1) Radiated Emission 1~18GHz 5.40 dB (1) Radiated Emission 18-40GHz 5.45 dB (1) Conducted Disturbance 0.15~30MHz 2.68 dB (1) Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 6 of 8 Report No.: HTT202502221F02 Page 7 of 8 4 Test limit 4.1 Requirement Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Frequency Electric Field Magnetic Field Power Density Range(MHz) Strength(V/m) Strength(A/m) (mW/cm²) 0.3 3.0 3.0 30 30 300 300 1500 1500 100,000 Limits for Occupational/Controlled Exposure 614 1842/f 61.4 / / 1.63 4.89/f 0.163 / / (100) * (900/f2)* 1.0 f/300 5 Averaging Time (minute) 6 6 6 6 6 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Frequency Electric Field Magnetic Field Power Density Range(MHz) Strength(V/m) Strength(A/m) (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 3.0 3.0 30 30 300 300 1500 1500 100,000 614 824/f 27.5 / / 1.63 2.19/f 0.073 / / (100) * (180/f2)* 0.2 f/1500 1.0 30 30 30 30 30 F=frequency in MHz *=Plane-wave equivalent power density 4.2 MPE Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4R² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 7 of 8 Report No.: HTT202502221F02 Page 8 of 8 4.3 Conducted Power Results Mode 802.11b 802.11g 802.11n (HT20) 802.11n (HT40) TX Type SISO SISO SISO SISO Frequency (MHz) 2412 2437 2462 2412 2437 2462 2412 2437 2462 2422 2437 2452 4.4 Manufacturing tolerance Mode 2.4GWIFI Max. Peak Conducted Output Power (dBm) 26.27 Maximum Peak Conducted Output Power (dBm) ANT1 Limit 24.36 <=30 26.27 <=30 24.92 <=30 23.91 <=30 23.92 <=30 23.61 <=30 23.58 <=30 23.59 <=30 23.16 <=30 23.64 <=30 23.45 <=30 23.38 <=30 Max. tune-up 26.0±1 4.5 Standalone MPE Result As declared by the Applicant, the EUT is a wireless device used in a fix application, at least 20 cm from any body part of the user or nearby persons; from the maximum EUT RF output power, the minimum separation distance, r =20cm, as well as the gain of the used antenna is refer to section 2.2, the RF power density can be obtained. Modulation Type Output power dBm Mw Antenna Antenna Gain Gain (dBi) (linear) MPE (Mw/cm2) MPE Limits (Mw/cm2) 2.4GWIFI 27.0 501.1872 2.5 1.7783 0.1774 1.0000 Remark: 1. Output power (Peak) including turn-up tolerance; 2. MPE evaluate distance is 20cm from user manual provide by manufacturer. 4.6 Simultaneous Transmission for MPE Result N/A 5 Conclusion The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure of mobile device Threshold per KDB 447498 D01v06 ********************** End of Report ********************** Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 8 of 8
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- 2AR95-WHMC01 - Shenzhen Wenhui Technology Development Co., Ltd. Intelligent sensing [-WHMC01] Microsoft Word 2021 Microsoft Word 2021