RF Exposure MPE Report for Scent Diffuser Pro 2
Report Reference No.: HTT202502686F02
FCC ID: 2BA6L-SDPRO2
Test Laboratory Information
Testing Laboratory Name: Shenzhen HTT Technology Co.,Ltd.
Address: 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China
Contact: Tel: 0755-23595200, Fax: 0755-23595201
Applicant Information
Applicant's Name: Guangdong Baixiang Environmental Technology Co., Ltd
Address: 6& 7th Floor, Building H, Lingyun Technology Park, No. 43 East Jinshi Avenue, Shiling Town, Huadu District, Guangzhou, China
Product Details
Test Item Description: Scent Diffuser Pro 2
Manufacturer: Guangdong Baixiang Environmental Technology Co., Ltd
Trade Mark: Scentiment
Model/Type Reference: Scent Diffuser Pro 2
Listed Models: SS2000, HVAC Diffuser, Scent Diffuser Pro 2, Diffuseur de Parfum Pro 2, Difusor de Aroma Pro 2
Model Difference: The PCB board, circuit, structure and internal of these models are the same; only the model number is different.
Operation Frequency: From 2412MHz~2462MHz
Rating: MODEL NO: D120-12V12WUS, INPUT: AC100-240V, 50/60Hz, 0.3A, OUTPUT: DC 12V, 1.0A
Test Standards
The tests were performed according to the following standards:
- ANSI C95.1–1999: 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
Summary of Test
Date of Receipt of Test Sample: Feb. 20, 2025
Testing Commenced On: Feb. 20, 2025
Testing Concluded On: Mar. 05, 2025
Result: PASS
Modifications: No modifications were implemented to meet testing criteria.
Test Environment
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
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.
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 according to TR-100028-01 and TR-100028-02, 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.
Measurement Capability:
| 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) |
Test Limit and Requirements
Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure
| Frequency Range(MHz) | Electric Field Strength(V/m) | Magnetic Field Strength(A/m) | Power Density (mW/cm²) | Averaging Time (minute) |
|---|---|---|---|---|
| 0.3 – 3.0 | 614 | 1.63 | (100) * | 6 |
| 3.0 – 30 | 1842/f | 4.89/f | (900/f²)* | 6 |
| 30 – 300 | 61.4 | 0.163 | 1.0 | 6 |
| 300 – 1500 | / | / | f/300 | 6 |
| 1500 – 100,000 | / | / | 5 | 6 |
Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure
| Frequency Range(MHz) | Electric Field Strength(V/m) | Magnetic Field Strength(A/m) | Power Density (mW/cm²) | Averaging Time (minute) |
|---|---|---|---|---|
| 0.3 – 3.0 | 614 | 1.63 | (100) * | 30 |
| 3.0 – 30 | 824/f | 2.19/f | (180/f²)* | 30 |
| 30 – 300 | 27.5 | 0.073 | 0.2 | 30 |
| 300 – 1500 | / | / | f/1500 | 30 |
| 1500 – 100,000 | / | / | 1.0 | 30 |
Note: F=frequency in MHz, *=Plane-wave equivalent power density
MPE Calculation Method
Predication of MPE limit at a given distance. Equation from page 18 of OET Bulletin 65, Edition 97-01:
S=PG/4πR²
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.
Conducted Power Results
| Mode | TX Type | Frequency (MHz) | Maximum Peak Conducted Output Power (dBm) |
|---|---|---|---|
| 802.11b | SISO | 2412 | 14.35 |
| 2437 | 14.69 | ||
| 2462 | 14.70 | ||
| 802.11g | SISO | 2412 | 17.07 |
| 2437 | 17.44 | ||
| 2462 | 17.38 | ||
| 802.11n (HT20) | SISO | 2412 | 16.95 |
| 2437 | 17.41 | ||
| 2462 | 17.34 |
Manufacturing Tolerance
| Mode | Max. Peak Conducted Output Power (dBm) | Max. tune-up |
|---|---|---|
| 2.4GWIFI | 17.44 | 17.0 ± 1 |
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 (refer to section 2.2), the RF power density can be obtained.
| Modulation Type | Output power (dBm) | Output power (mW) | Antenna Gain (dBi) | Antenna Gain (linear) | MPE (mW/cm²) | MPE Limits (mW/cm²) |
|---|---|---|---|---|---|---|
| 2.4GWIFI | 18.0 | 63.0957 | 0.0 | 1.000 | 0.0126 | 1.0000 |
Remark:
- Output power (Peak) including turn-up tolerance.
- MPE evaluate distance is 20cm from user manual provided by manufacturer.
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.
