510(k) · Cleared
ClearedInfrared Thermometer
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Shenzhen Xunwei Industrial Co., Ltd. · FLL Continuous Measurement Thermometer
Cleared on Jan 15, 2021 as substantially equivalent to K191829 (Microlife Intellectual Property GmbH, 2020) after a 218-day review. Its family tree reaches back 5 generations to 2000.
- Decided
- Jan 15, 2021
- Review
- 218 days
- Class
- Class II
- Product code
- FLL
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 5 generations to K000969 (2000). 9 ancestors in all. No later device cites it as a predicate yet.
- Root · 5 generations backK000969 Microlife Digital Infrared Ear Thermometer, Model IR1DA1Microlife Corp. · 2000
- 4 generations backK020725 Microlife Digital Infrared Ear Thermometer, Model IR1DE1Microlife Corp. · 2002
- 3 generations backK033820 Microlife Digital Infrared Forehead Thermometer, Model FR1DM1Microlife Intellectual Property GmbH · 2004
- 2 generations backK100953 Microlife Non-Contact Infrared Forehead Thermometer, Model FR1DZ1Microlife Intellectual Property GmbH · 2010
- 1 generation backK191829 Microlife Non-Contact Infrared Forehead ThermometerMicrolife Intellectual Property GmbH · 2020
- This deviceK201579 Infrared ThermometerShenzhen Xunwei Industrial Co., Ltd. · 2021
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K000969 | Microlife Digital Infrared Ear Thermometer, Model IR1DA1 | Microlife Corp. | 2000 | — |
| −4 | K020725 | Microlife Digital Infrared Ear Thermometer, Model IR1DE1 | Microlife Corp. | 2002 | — |
| −3 | K033820 | Microlife Digital Infrared Forehead Thermometer, Model FR1DM1 | Microlife Intellectual Property GmbH | 2004 | — |
| −2 | K100953 | Microlife Non-Contact Infrared Forehead Thermometer, Model FR1DZ1 | Microlife Intellectual Property GmbH | 2010 | — |
| −1 | K191829 | Microlife Non-Contact Infrared Forehead Thermometer | Microlife Intellectual Property GmbH | 2020 | — |
| 0 (this device) | K201579 | Infrared Thermometer | Shenzhen Xunwei Industrial Co., Ltd. | 2021 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2004 | 1 | 0 |
| 2007 | 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 |
|---|---|---|---|
| * | K191829 | Microlife Non-Contact Infrared Forehead ThermometerSummary page 5…ntellectual Property GmbH Device name Microlife Non-Contact Infrared Forehead Thermometer Model FR1DG1 (NC200) 510(K) Number: K191829 Product Code FLL 4. Device Description The device is intended for the intermittent measurement and monitoring of f… | 2020 |
What descends from it?
No later submission names this one as a predicate yet.
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 21 years and passes through 3 companies; a new generation was cleared every 2.0 years on median.
- None of the 9 ancestors has a recall.
- 8 other devices also cite its predicate K191829.
How does its category compare?
All FLL devicesFLL Continuous Measurement Thermometer: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, 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 infrared thermometer, Model XW-60 is intended for the intermittent measurement and monitoring of forehead temperature of human body. The device is indicated for use by people of one month old and above age in the home.
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/K201579 · printed Nov 6, 2026
Cite this page
510(k) Report. “K201579: Infrared Thermometer.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K201579
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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