Document Overview
Document Overview This article covers the official CE Electromagnetic Compatibility (EMC) test report issued for the ETENWOLF S3 cordless tire inflator. The report was prepared and issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd., an accredited third-party testing laboratory located in Longgang District, Shenzhen,…
- Document type
- Certification Report
- Prepared by
- Michelle Torres
- Published
- Last reviewed
- Topics
- European Union: CE / RoHS / REACH / WEEE
Document Overview
This article covers the official CE Electromagnetic Compatibility (EMC) test report issued for the ETENWOLF S3 cordless tire inflator. The report was prepared and issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd., an accredited third-party testing laboratory located in Longgang District, Shenzhen, Guangdong, China.
- Document Type: CE-EMC Test Report
- Reference Number: WTH25H07183669E
- Test Report Form No.: TRF EN IEC 55014-1: 2021-EMC-001-V01
- Internal Form No.: HCT/RF-23-21
- Date of Issue: 2025-07-22
- Test Period: 2025-07-14 to 2025-07-16
- Sample Receipt Date: 2025-07-11
- Overall Test Result: Pass
The report covers electromagnetic emissions testing across conducted disturbances, disturbance power, and radiated disturbances, demonstrating full conformity with applicable EU EMC Directive requirements.
Product Information
The Equipment Under Test (EUT) evaluated in this report is the ETENWOLF S3 cordless tire inflator pump, designed and manufactured for portable inflation applications including automotive tires, bicycle tires, sports equipment, and other inflatable goods.
- Product Name: Inflator Pump
- Model Number: S3
- Brand: ETENWOLF
- Applicant: Guangdong Bestek Technology Co., Ltd.
- Manufacturer: Guangdong Bestek Technology Co., Ltd.
- Manufacturer Address: No.1, North Gaopu 8th Road, Yuancheng Industrial Park, Heyuan City, Guangdong, P.R. China
The S3 is a cordless, battery-powered inflation tool engineered for portability and ease of use. Its compact form factor and motorized pump mechanism are subject to EMC evaluation to ensure the device does not generate electromagnetic interference that could affect other equipment or fail to operate correctly in the presence of external interference.
Key Details
The following table summarizes the core parameters and test scope documented in report WTH25H07183669E:
| Parameter | Detail |
|---|---|
| Reference Number | WTH25H07183669E |
| Test Report Form No. | TRF EN IEC 55014-1: 2021-EMC-001-V01 |
| Product Model | S3 |
| Product Category | Inflator Pump (Cordless) |
| Applicant | Guangdong Bestek Technology Co., Ltd. |
| Manufacturer | Guangdong Bestek Technology Co., Ltd. |
| Sample Receipt Date | 2025-07-11 |
| Test Dates | 2025-07-14 to 2025-07-16 |
| Date of Issue | 2025-07-22 |
| Overall Result | Pass |
| Test Scope | Conducted Disturbances (Mains Terminals), Disturbance Power, Radiated Disturbances |
| Prepared By | Snow Zeng |
| Approved By | Tony Wu |
| Issuing Laboratory | Waltek Testing Group HCT (Shenzhen) Co., Ltd. |
The report spans 54 pages and includes full test data, measurement uncertainty analysis, EUT setup photographs, instrument calibration records, and test equipment lists for each evaluated parameter category.
Standards & Compliance
The ETENWOLF S3 was evaluated against the following harmonized European standards, which support conformity with the EU EMC Directive 2014/30/EU:
- EN IEC 55014-1: 2021 — Electromagnetic Disturbances: Requirements for Household Appliances, Electric Tools and Similar Apparatus — Part 1: Emission
- EN IEC 55014-2: 2021 — Electromagnetic Disturbances: Requirements for Household Appliances, Electric Tools and Similar Apparatus — Part 2: Immunity
- EN IEC 61000-3-2: 2019+A1:2021 — Electromagnetic Compatibility (EMC) — Limits for Harmonic Current Emissions
- EN 61000-3-3: 2013+A2:2021 — Electromagnetic Compatibility (EMC) — Limitation of Voltage Changes, Voltage Fluctuations and Flicker
The test methodology followed the procedures defined within each standard, including measurement uncertainty budgets applied in accordance with CISPR 16-4-2 guidelines. The decision rule applied for pass/fail determination accounts for measurement uncertainty, ensuring conservative and reliable compliance conclusions.
The three primary test categories assessed were:
- Conducted Disturbance at Mains Terminals — measures radio-frequency interference conducted back onto the power supply network.
- Disturbance Power — evaluates power-frequency electromagnetic disturbance radiated from the EUT.
- Radiated Disturbances — measures electromagnetic emissions radiated directly from the EUT enclosure and cables.
Validity & Certification Body
This test report was issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd., a recognized accredited testing and certification laboratory serving global markets.
- 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
- Telephone: 0755-84616666
- Service Hotline: 400-0066-989
- Email: [email protected]
- Web: http://www.hct-test.com
- Report Reference No.: WTH25H07183669E
- Date of Issue: 2025-07-22
Test reports issued by accredited laboratories such as Waltek HCT support the manufacturer’s Declaration of Conformity (DoC) required for CE marking. The validity of this report is tied to the product model, configuration, and test standards listed. Any modification to the product design, circuit, firmware, or power supply may require re-evaluation. The report covers 54 pages of technical data and is identified under internal form number HCT/RF-23-21.
Frequently Asked Questions
- Q: What does the CE-EMC test result mean for the ETENWOLF S3?
-
A Pass result on report WTH25H07183669E confirms that the ETENWOLF S3 cordless tire inflator meets the electromagnetic emissions and immunity requirements defined by EN IEC 55014-1:2021 and EN IEC 55014-2:2021. This means the device does not generate harmful electromagnetic interference and can operate reliably alongside other electrical equipment in typical environments.
- Q: Which specific EMC tests were conducted on the S3 inflator pump?
-
Three categories of tests were performed: (1) Conducted Disturbance at Mains Terminals, measuring RF noise fed back into the power network; (2) Disturbance Power, evaluating power-frequency emissions from the device; and (3) Radiated Disturbances, measuring electromagnetic emissions radiated from the device body and cables. All three categories returned a Pass result.
- Q: Is this report sufficient for CE marking of the S3 in the European market?
-
This EMC test report supports the EMC Directive 2014/30/EU component of CE marking for the ETENWOLF S3. However, full CE marking typically requires compliance with additional applicable directives (such as the Low Voltage Directive or Machinery Directive depending on product classification), a complete technical file, and a signed Declaration of Conformity by the authorized representative.
- Q: Who conducted and approved the EMC testing for the S3?
-
The testing was conducted at Waltek Testing Group HCT (Shenzhen) Co., Ltd., an accredited third-party laboratory. The report was prepared by Snow Zeng and approved by Tony Wu. Testing took place between 2025-07-14 and 2025-07-16, with the report issued on 2025-07-22.
Related Documents
The following certification and compliance documents are relevant to the ETENWOLF S3 cordless tire inflator and may complement this CE-EMC test report as part of a complete regulatory compliance package:
- CE-LVD Test Report — Low Voltage Directive safety testing (EN 62133 or applicable IEC safety standard for battery-powered tools)
- UN 38.3 Battery Transport Certification — Required for lithium-ion battery cells used in the S3, covering transport safety under UN 38.3 test procedures
- FCC ID / SDOC Report — Electromagnetic compatibility certification for the United States market under FCC Part 15B
- KC Certification — Korean Certification mark required for products sold in South Korea under KC EMC and safety standards
- RoHS Compliance Report — Restriction of Hazardous Substances compliance per EU RoHS Directive 2011/65/EU
- REACH SVHC Declaration — Declaration confirming compliance with EU REACH Regulation (EC) No 1907/2006 regarding substances of very high concern
- CE Declaration of Conformity (DoC) — The manufacturer’s formal written declaration referencing all applicable CE directives and harmonized standards for the S3
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