FDA PRODUCT CODE · CLASS II
FLL — Continuous Measurement Thermometer
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 these counts are not
Clearance and recall counts are SPEQ’s aggregation of FDA’s own published records for the code. A recall count is a measure of history, not of a device’s safety, neither number is an FDA rating, and SPEQ is not affiliated with the FDA.
What this classification requires
Every statement below is FDA’s own classification record for this product code, quoted from the device classification field reference. The SPEQ reading beneath each one is SPEQ’s interpretation of what it means for the work, and is not FDA text.
510(K)
SPEQ READINGA premarket notification under 21 CFR Part 807 Subpart E is the route for this code. The submission argues substantial equivalence to a legally marketed predicate, so the engineering question is which predicate the design can actually be compared against, and the evidence question is what testing supports that comparison.
Class II (moderate to high risk): general controls and special controls
SPEQ READINGSpecial controls are the distinguishing feature: performance standards, guidance documents, patient registries or postmarket surveillance named for the device type. Find the special controls before designing the test plan — they usually name the tests.
Device is eligible for The Voluntary Malfunction Summary Reporting Program
SPEQ READINGMalfunctions for this code may be reported in periodic summary form rather than as individual MDRs under 21 CFR Part 803. Eligibility is a property of the product code; using it is a decision the manufacturer makes and must be able to justify.
Not exempt due to Good Manufacturing Practice (GMP)/Quality System
SPEQ READINGThe full Quality Management System Regulation (21 CFR 820, incorporating ISO 13485:2016) applies, and is what an FDA inspection of this device will be conducted against.
Device is not implantable
SPEQ READINGNo implant-specific expectations attach from the classification itself.
Device is not used for life sustaining purposes
SPEQ READINGNo life-sustaining designation attaches to this code.
Device is a candidate for a third party review program
SPEQ READINGAn Accredited Person may conduct the 510(k) review instead of FDA. FDA still makes the clearance decision — third-party review changes who reviews, never who decides.
Other product codes under 21 CFR 880.2910
One regulation usually governs several product codes. These share this code’s regulation, and therefore its classification basis.
21 CFR 880.2910 — Clinical electronic thermometer
The classification regulation for this product code, as published by the Office of the Federal Register. This is the regulation text itself — no SPEQ interpretation appears in it.
(a) Identification. A clinical electronic thermometer is a device used to measure the body temperature of a patient by means of a transducer coupled with an electronic signal amplification, conditioning, and display unit. The transducer may be in a detachable probe with or without a disposable cover.
(b) Classification. Class II (performance standards). The device is exempt from the premarket notification procedures in part 807, subpart E of this chapter, subject to the limitations in § 880.9 and the following conditions for exemption: (1) Device is not a clinical thermometer with telethermographic functions; (2) Device is not a clinical thermometer with continuous temperature measurement functions; and (3) Appropriate analysis and testing (such as that outlined in the currently FDA-recognized editions, as appropriate, of ISO 80601-2-56, “Medical electrical equipment—Part 2-56: Particular requirements for basic safety and essential performance of clinical thermometers for body temperature measurement,” or ASTM E1965, “Standard Specification for Infrared Thermometers for Intermittent Determination of Patient Temperature,” or ASTM E1112, “Standard Specification for Electronic Thermometer for Intermittent Determination of Patient Temperature,” or ASTM E1104, “Standard Specification for Clinical Thermometer Probe Covers and Sheaths”) must validate specifications and performance of the device. [45 FR 69682, Oct. 21, 1980, as amended at 90 FR 25891, June 18, 2025]
Source: Electronic Code of Federal Regulations, Title 21. 21 CFR is a work of the United States Government and is in the public domain. SPEQ read this section on October 22, 2026. CFR is amended continuously, so verify against the source before acting on it: read 21 CFR 880.2910 on eCFR →
Recent clearances
Recent recalls
Affected oral/axillary probes were inadvertently programmed with the rectal probe configuration. Affected probes will potentially display a lower temperature than the true value, which may lead to a delay in managing fever-related symptoms or infection.
Device may provide inaccurate measurements.
An incorrect calibration of the thermometer that causes the device to display inaccurate and frequently lower temperatures than the actual body temperature of the user.
The thermometers have been reported to have inaccurate readings
Product temperature readings may be 2C higher than the actual temperature
Product temperature readings may be 2C higher than the actual temperature
Omron is recalling the Omron 3-Way Instant Thermometers due to possible overheating of the probe tip.
Mechanical setting errors that result in calibration errors.
Source: FDA device classification, 510(k)/PMA, and recall datasets. Recall entries count distinct FDA recall numbers, so one recall event affecting several products appears as several entries. Browse every product code SPEQ tracks →