510(k) Report

510(k) · Cleared

Cleared

Tyto Thermometer

K190242510(k) TraditionalCleared Mar 27, 201949-day reviewClass II21 CFR 880.2910

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Tyto Care, Ltd. · FLL Continuous Measurement Thermometer

Cleared on Mar 27, 2019 as substantially equivalent to K134043 (Kaz USA, Inc (A Subsidiaryof Kaz Inc), 2014) after a 49-day review. Its family tree reaches back 4 generations to 2001. 1 later device descends from it.

Decided
Mar 27, 2019
Review
49 days
Class
Class II
Product code
FLL
Recalls
None
Predicates
1

Its longest line of descent runs back 4 generations to K011291 (2001). 1 later device descends from it, 1 citing it directly.

  1. Root · 4 generations backK011291 Temporalscanner Thermometer, SensortouchExergen Corp. · 2001
  2. 3 generations backK033790 Thermofocus 0800, 0900, 01500 and 0700 SeriesTecnimed S.R.L. · 2004
  3. 2 generations backK081160 Avita Radar Thermo IR Thermometer, NT1 SeriesAvita Corporation · 2008
  4. 1 generation backK134043 NO Touch+Forehead NTF 3000 ThermometerKaz USA, Inc (A Subsidiaryof Kaz Inc) · 2014
  5. This deviceK190242 Tyto ThermometerTyto Care, Ltd. · 2019
  6. Descendant · cites it directly · 0 of its ownK223785 N9+Nonagon, Ltd. · 2023

Most influential descendants

Showing 1 of 1 · See all
  • K223785N9+Nonagon, Ltd. · 2023 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−4K011291Temporalscanner Thermometer, SensortouchExergen Corp.2001—
−3K033790Thermofocus 0800, 0900, 01500 and 0700 SeriesTecnimed S.R.L.2004—
−2K081160Avita Radar Thermo IR Thermometer, NT1 SeriesAvita Corporation2008—
−1K134043NO Touch+Forehead NTF 3000 ThermometerKaz USA, Inc (A Subsidiaryof Kaz Inc)2014—
0 (this device)K190242Tyto ThermometerTyto Care, Ltd.2019—
+1K223785N9+Nonagon, Ltd.2023—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202310
FIG. 1 — Lineage of K190242, 2001–2023Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in FLL? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new FLL device

  1. #1 K191829 Microlife Non-Contact Infrared Forehead…score 26.7 · 4 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K134043NO Touch+Forehead NTF 3000 Thermometer
Summary page 4
…Panel: General Hospital Predicate Device(s): Device name 510(k) No. Date of Clearance No Touch + Forehead K134043 May 21, 2014 Thermometer NFT3000 The CliniCloud Thermometer (K161325) is used as the Reference Device. T…
Kaz USA, Inc (A Subsidiaryof Kaz Inc)2014—
†K161325CliniCloud Non-contact Thermometer, Model SPL1024Stethocloud Pty.Ltd (Clinicloud)2016—

Also cleared against K134043: 7 other devices →

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K223785N9+Nonagon, Ltd.20230

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 18 years and passes through 5 companies; a new generation was cleared every 4.8 years on median.
  • None of the 4 ancestors has a recall.
  • Of its descendants, K223785 (Nonagon, Ltd., 2023) has gone furthest, with 0 descendants of its own.
  • 7 other devices also cite its predicate K134043.

How does its category compare?

All FLL devices

FLL Continuous Measurement Thermometer: FDA decisions, review times, recalls and adverse event reports over 20 years. 2019, this device’s year, is highlighted.

FDA decisions per year · FLL

6in 2025

2007: 152008: 142009: 132010: 242011: 202012: 172013: 142014: 72015: 32016: 222017: 162018: 352019: 222020: 212021: 432022: 242023: 172024: 132025: 62026 (partial year): 2
2007high 43 (2021) · low 3 (2015)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · FLL

131in 2025

2007: 81 days median2008: 59 days median2009: 84 days median2010: 88 days median2011: 113 days median2012: 126 days median2013: 149 days median2014: 199 days median2015: 270 days median2016: 157 days median2017: 174 days median2018: 209 days median2019: 198 days median2020: 194 days median2021: 218 days median2022: 218 days median2023: 295 days median2024: 223 days median2025: 131 days median
2007high 295 (2023) · low 59 (2008)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · FLL

1in 2025

2011: 12015: 12017: 22018: 12019: 52025: 12026 (partial year): 1
2007high 5 (2019) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · FLL

73in 2025

2007: 42008: 132009: 92010: 92011: 182012: 262013: 162014: 542015: 532016: 582017: 1182018: 512019: 522020: 532021: 1152022: 1422023: 1012024: 1182025: 73
2007high 142 (2022) · low 4 (2007)2025

MAUDE reports naming product code FLL, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
2007158104
20081459013
2009138409
2010248809
201120113118
201217126026
201314149016
20147199054
20153270153
201622157058
2017161742118
201835209151
201922198552
202021194053
2021432180115
2022242180142
2023172950101
2024132230118
20256131173
20262—1—

What is it indicated for?

The Tyto Thermometer is a non - contact clinical infrared thermometer intended for intermittent determination of human body temperature from the center of the forehead on people of all ages. The Tyto Thermometer is intended for use by both adult lay users and clinicians. It can be used both at home and in clinic environments.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K190242: Tyto Thermometer.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K190242

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026