Cleared Traditional

MICROLIFE INSTANT DIGITAL ELECTRONIC THERMOMETER, MODEL QT1JA1 (K031958) - FDA 510(k) Clearance

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

K031958 · Microlife Intellectual Property GmbH · General Hospital
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Aug 2003
Decision
51d
Days
Class 2
Risk

K031958 is an FDA 510(k) clearance for the MICROLIFE INSTANT DIGITAL ELECTRONIC THERMOMETER, MODEL QT1JA1. Classified as Continuous Measurement Thermometer (product code FLL), Class II - Special Controls.

Submitted by Microlife Intellectual Property GmbH (Great Neck, US). The FDA issued a Cleared decision on August 15, 2003 after a review of 51 days - a notably fast clearance cycle.

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: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Microlife Intellectual Property GmbH devices

Submission Details

510(k) Number K031958 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 25, 2003
Decision Date August 15, 2003
Days to Decision 51 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
78d faster than avg
Panel avg: 129d · This submission: 51d
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 215
Devices cleared under the same product code (FLL) and FDA review panel - the closest regulatory comparables to K031958.
DISPOSABLE TEMPERATURE, SKIN AND ESOPHAGEAL PROBES
K051873 · Ge Healthcare · Sep 2005
CLEVER TD-1107 EAR/SKIN/SURFACE IR THERMOMETER, CLEVER TD-1110 EAR/SKIN/SURFACE IR THERMOMETER
K050463 · Taidoc Technology Corporation · Jul 2005
REUSABLE TEMPERATURE PROBES (M1024254 SKIN TEMPERATURE PROBE, REUSABLE
K050837 · Ge Healthcare · Apr 2005
B-D DIGITAL THERMOMETER
K935267 · Bd Becton Dickinson Vacutainer Systems Preanalytic · Aug 1994
DIGITAL THERMOMETER KITS
K905025 · Abco Dealers, Inc. · Feb 1991
BD FLEXIBLE DIGITAL THERMOMETER
K902624 · Bd Becton Dickinson Vacutainer Systems Preanalytic · Aug 1990