510(k) · Cleared
ClearedTempTraq
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Blue Spark Technologies, Inc. · FLL Continuous Measurement Thermometer
Cleared on Dec 3, 2020 as substantially equivalent to K143267 (Blue Spark Technologies, Inc., 2015) after a 140-day review. Its family tree reaches back 4 generations to 2001. 1 later device descends from it.
- Decided
- Dec 3, 2020
- Review
- 140 days
- Class
- Class II
- Product code
- FLL
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 4 generations to K003326 (2001). 1 later device descends from it, 1 citing it directly.
- Root · 4 generations backK003326 Funet Amy Mama Body ThermometerFunai Radio & Communications Corp. · 2001
- 3 generations backK023956 Thermometer Models ST313C/F, ST314C/F, ST323C/F, ST324C/F, ST333C/F…Mesure Technology Co., Ltd. · 2004
- 2 generations backK063542 Wireless Temperature Monitor / Models ST323C and ST323F.Mesure Technology Co., Ltd. · 2007
- 1 generation backK143267 TempTraq TT-100Blue Spark Technologies, Inc. · 2015
- This deviceK201977 TempTraqBlue Spark Technologies, Inc. · 2020
- Descendant · cites it directly · 0 of its ownK233280 SteadyTempSteadysense GmbH · 2024
Most influential descendants
Showing 1 of 1 · See all- K233280SteadyTempSteadysense GmbH · 2024 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −4 | K003326 | Funet Amy Mama Body Thermometer | Funai Radio & Communications Corp. | 2001 | — |
| −3 | K023956 | Thermometer Models ST313C/F, ST314C/F, ST323C/F, ST324C/F, ST333C/F, ST334C/F | Mesure Technology Co., Ltd. | 2004 | — |
| −2 | K063542 | Wireless Temperature Monitor / Models ST323C and ST323F. | Mesure Technology Co., Ltd. | 2007 | — |
| −1 | K143267 | TempTraq TT-100 | Blue Spark Technologies, Inc. | 2015 | — |
| 0 (this device) | K201977 | TempTraq | Blue Spark Technologies, Inc. | 2020 | — |
| +1 | K233280 | SteadyTemp | Steadysense GmbH | 2024 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2024 | 1 | 0 |
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 K191829 Microlife Non-Contact Infrared Forehead…score 26.7 · 4 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the 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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K143267 | TempTraq TT-100Summary page 4…100 Common Name Clinical Electronic Thermometer 510(k) Submitter / Holder Blue Spark Technologies Inc. 510(k) Number K143267 Regulation Number 21 CFR 820.2910 Classification Panel General Hospital Product Code… | 2015 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K233280 | SteadyTemp | 2024 | 0 |
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 19 years and passes through 3 companies; a new generation was cleared every 5.3 years on median.
- None of the 4 ancestors has a recall.
- Of its descendants, K233280 (Steadysense GmbH, 2024) has gone furthest, with 0 descendants of its own.
- 1 other device also cites its predicate K143267.
How does its category compare?
All FLL devicesFLL Continuous Measurement Thermometer: FDA decisions, review times, recalls and adverse event reports over 20 years. 2020, this device’s year, is highlighted.
FDA decisions per year · FLL
6in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · FLL
131in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · FLL
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · FLL
73in 2025
MAUDE reports naming product code FLL, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 15 | 81 | 0 | 4 |
| 2008 | 14 | 59 | 0 | 13 |
| 2009 | 13 | 84 | 0 | 9 |
| 2010 | 24 | 88 | 0 | 9 |
| 2011 | 20 | 113 | 1 | 18 |
| 2012 | 17 | 126 | 0 | 26 |
| 2013 | 14 | 149 | 0 | 16 |
| 2014 | 7 | 199 | 0 | 54 |
| 2015 | 3 | 270 | 1 | 53 |
| 2016 | 22 | 157 | 0 | 58 |
| 2017 | 16 | 174 | 2 | 118 |
| 2018 | 35 | 209 | 1 | 51 |
| 2019 | 22 | 198 | 5 | 52 |
| 2020 | 21 | 194 | 0 | 53 |
| 2021 | 43 | 218 | 0 | 115 |
| 2022 | 24 | 218 | 0 | 142 |
| 2023 | 17 | 295 | 0 | 101 |
| 2024 | 13 | 223 | 0 | 118 |
| 2025 | 6 | 131 | 1 | 73 |
| 2026 | 2 | — | 1 | — |
What is it indicated for?
The Wireless thermometers are battery-operated electronic devices with intended use of measuring human body temperature precisely. The devices are single-use and intended for armpit temperature measurement for persons of all ages.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K201977 · printed Nov 6, 2026
Cite this page
510(k) Report. “K201977: TempTraq.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K201977
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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