Cleared Traditional

K210171 - Non-contact Infrared Thermometer (Models WL-301, WL-501, WL-601, WL-701) (FDA 510(k) Clearance)

Class II General Hospital device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K210171 · Sichuan Youkede Medical Equipment Co.,Ltd · General Hospital
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Mar 2022
Decision
420d
Days
Class 2
Risk

K210171 is an FDA 510(k) clearance for the Non-contact Infrared Thermometer (Models WL-301, WL-501, WL-601, WL-701). Classified as Continuous Measurement Thermometer (product code FLL), Class II - Special Controls.

Submitted by Sichuan Youkede Medical Equipment Co.,Ltd (Mianyang, CN). The FDA issued a Cleared decision on March 18, 2022 after a review of 420 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the General Hospital FDA review panel, regulated under 21 CFR 880.2910 - the FDA general hospital device framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: High-complexity regulatory submission. Elevated predicate reliance profile. The extended review timeline suggests the FDA required additional documentation before confirming substantial equivalence - a pattern common in complex or first-of-kind General Hospital submissions.

View all Sichuan Youkede Medical Equipment Co.,Ltd devices

Submission Details

510(k) Number K210171 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received January 22, 2021
Decision Date March 18, 2022
Days to Decision 420 days
Submission Type Traditional
Review Panel General Hospital (HO)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
292d slower than avg
Panel avg: 128d · This submission: 420d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code FLL Continuous Measurement Thermometer
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 880.2910
Definition A Continuous Measurement Thermometer Is A Clinical Electronic Thermometer Indicated To Measure The Body Or Skin Temperature Of A Person Continuously Or In Specified Intervals. Under This Regulation, This Product Code Represents Non-exempt Devices. For More Information, See 90 Fr 25889, Available At Https://www.govinfo.gov/content/pkg/fr-2025-06-18/pdf/2025-11207.pdf.
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most General Hospital devices follow this clearance model.

Regulatory Peers - FLL Continuous Measurement Thermometer

All 796
Devices cleared under the same product code (FLL) and FDA review panel - the closest regulatory comparables to K210171.
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