Document Overview
Document Overview This page presents the FCC Supplier’s Declaration of Conformity (SDoC) test report for the ETENWOLF S1 Portable Tire Inflator, issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd. The report certifies that the product complies with FCC CFR 47 Part 15 Subpart B…
- Document type
- Certification Report
- Prepared by
- Michelle Torres
- Published
- Last reviewed
- Topics
- North America: FCC / UL
Document Overview
This page presents the FCC Supplier’s Declaration of Conformity (SDoC) test report for the ETENWOLF S1 Portable Tire Inflator, issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd. The report certifies that the product complies with FCC CFR 47 Part 15 Subpart B electromagnetic compatibility (EMC) requirements applicable to unintentional radiators sold or operated in the United States market.
| Field | Detail |
|---|---|
| Document Type | FCC Supplier’s Declaration of Conformity (SDoC) — Test Report |
| Reference Number | WTH25H12333147E |
| Test Report Form | TRF FCC CFR 47 Part 15 Subpart B-EMC-001-V01 |
| Internal Form Code | HCT/RF-23-21 |
| Issuing Laboratory | Waltek Testing Group HCT (Shenzhen) Co., Ltd. |
| Date Sample Received | 2025-12-12 |
| Test Period | 2025-12-15 to 2025-12-17 |
| Date of Issue | 2025-12-25 |
| Overall Test Result | Pass |
Product Information
The Equipment Under Test (EUT) is the ETENWOLF S1 Portable Tire Inflator, a compact, battery-powered tire pump designed for automotive and recreational use. The unit supports two operating modes: a charging mode (Mode 1) and a working/inflation mode (Mode 2).
| Field | Detail |
|---|---|
| EUT Name | Tire Pump |
| Trade Mark | N/A |
| Model Number | S1 |
| Operating Mode 1 | Charging Mode |
| Operating Mode 2 | Working / Inflation Mode |
| Applicant | Guangdong Bestek Technology Co., LTD |
| Applicant Address | No.1, North Gaopu 8th Road, Yuancheng Industrial Park, Heyuan City, Guangdong, P.R. China |
| Manufacturer | Guangdong Bestek Technology Co., LTD |
| Manufacturer Address | No.1, North Gaopu 8th Road, Yuancheng Industrial Park, Heyuan City, Guangdong, P.R. China |
Key Details
The test report covers two primary EMC measurement disciplines: Conducted Emission and Radiated Emission. Both were evaluated against the FCC limits defined under CFR 47 Part 15 Subpart B for unintentional radiators. All measured values fell within the prescribed limits, resulting in a full Pass determination.
Conducted Emission (Section 3)
Conducted emission measurements assess high-frequency noise injected back into the mains or power supply lines by the EUT. The test was performed with the EUT connected to its rated power source. Measurement uncertainty was documented per standard metrology requirements. The corrected emission levels were confirmed to be below the applicable FCC conducted emission limits across all tested frequency ranges.
| Parameter | Detail |
|---|---|
| Standard Applied | FCC CFR 47 Part 15 Subpart B |
| Measurement Uncertainty | Documented in Section 3.1 of the report |
| EUT Setup | Per Section 3.3 — standard conducted emission bench configuration |
| Instrument Setup | Per Section 3.4 |
| Test Procedure | Per Section 3.5 |
| Result | Pass |
Radiated Emission (Section 4)
Radiated emission measurements evaluate electromagnetic energy radiated from the EUT into free space. Tests were conducted at an accredited EMC test facility using a calibrated test receiver. Corrected amplitude and margin calculations confirmed that all emission peaks remained below the FCC radiated emission limits.
| Parameter | Detail |
|---|---|
| Standard Applied | FCC CFR 47 Part 15 Subpart B |
| Measurement Uncertainty | Documented in Section 4.1 of the report |
| EUT Setup | Per Section 4.3 |
| Test Receiver Setup | Per Section 4.4 |
| Amplitude & Margin Calc. | Per Section 4.6 |
| Result | Pass |
Decision Rule
The laboratory applied a documented decision rule (Section 2.6) to account for measurement uncertainty when determining pass/fail status, consistent with ILAC-G8 guidelines and FCC policy for EMC testing.
Standards & Compliance
The ETENWOLF S1 was tested against the following regulatory standard:
| Standard | Scope | Applicability |
|---|---|---|
| FCC CFR 47 Part 15 Subpart B | Unintentional Radiators — Conducted & Radiated Emissions | USA market |
As an unintentional radiator classified under FCC Part 15 Subpart B, the S1 does not require an FCC ID but must comply with emission limits and be supported by an SDoC. This test report forms the technical basis for that declaration. The test report form reference is TRF FCC CFR 47 Part 15 Subpart B-EMC-001-V01.
No intentional radio transmitter modules were identified in the EUT configuration tested under this report. Equipment modifications were evaluated per Section 2.3 to confirm no changes affecting EMC performance were introduced prior to testing.
Validity & Certification Body
This test report was prepared and issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd., an independent third-party EMC testing laboratory located in Shenzhen, Guangdong, China.
| Field | Detail |
|---|---|
| Laboratory Name | Waltek Testing Group HCT (Shenzhen) Co., Ltd. |
| Laboratory Address | Building B, Tianji Industrial Park, 1/F. & 2/F. & 3/F., No.30-9, Laiyin Road, Xinsheng Community, Longgang Subdistrict, Longgang District, Shenzhen, Guangdong, China |
| Laboratory Website | http://www.hct-test.com |
| Service Telephone | 400-0066-989 |
| Service Email | [email protected] |
| Report Reference No. | WTH25H12333147E |
| Date of Issue | 2025-12-25 |
| Prepared By | Snow Zeng |
| Approved By | Tony Wu |
| Report Validity | Valid as issued for the tested configuration of model S1; remains applicable as long as the product design, components, and operating modes remain unchanged from the tested sample |
The report covers 26 pages including test data sections, EUT photographs (Appendix A), and test setup photographs (Appendix B), providing a complete audit trail for FCC SDoC purposes.
Frequently Asked Questions
- What does FCC CFR 47 Part 15 Subpart B mean for the ETENWOLF S1?
-
FCC CFR 47 Part 15 Subpart B sets limits on unintentional electromagnetic emissions from digital and electronic devices sold in the United States. The ETENWOLF S1 is classified as an unintentional radiator under this rule, meaning it must not produce conducted or radiated emissions that exceed FCC-specified limits. Test report WTH25H12333147E confirms the S1 passes all applicable limits.
- Does the ETENWOLF S1 require an FCC ID?
-
No. The S1 does not contain an intentional radio transmitter and therefore does not require an FCC ID. It is authorized for the US market through a Supplier’s Declaration of Conformity (SDoC), which is supported by this test report (Reference No. WTH25H12333147E) demonstrating compliance with FCC Part 15 Subpart B emission limits.
- Who conducted the FCC EMC testing for the S1?
-
Testing was performed by Waltek Testing Group HCT (Shenzhen) Co., Ltd., an independent third-party EMC laboratory based in Longgang District, Shenzhen, China. The report was prepared by Snow Zeng and approved by Tony Wu, and issued on 2025-12-25.
- What operating modes were tested during the FCC evaluation?
-
The S1 was tested in two operating modes: Mode 1 (Charging Mode), where the unit is connected to a power source for battery charging, and Mode 2 (Working/Inflation Mode), where the pump motor is actively running to inflate tires. Both modes were evaluated to ensure compliance under all typical use conditions.
Related Documents
For full market access and product compliance, the ETENWOLF S1 Portable Tire Inflator may also be supported by the following related certification and compliance documents:
- CE Declaration of Conformity — Required for the European market, covering IEC-based EMC and Low Voltage Directive requirements.
- UN 38.3 Battery Transport Test Report — Required for the lithium-ion battery pack within the S1, certifying safe air and ground transport compliance per UN38.3 standards.
- RoHS Compliance Report — Confirms restriction of hazardous substances in accordance with RoHS Directive 2011/65/EU for EU market access.
- REACH SVHC Declaration — Addresses REACH Regulation compliance for substances of very high concern present in the product.
- KC Certification (Korea) — Required for sale in South Korea under the KC mark scheme, covering EMC and safety requirements.
- ISO 9001 Quality Management Certificate — Issued to the manufacturer, demonstrating a certified quality management system supporting consistent production.
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