510(k) · Cleared
ClearedInfrared Thermometer
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Shenzhen AOJ Medical Technology Co., Ltd. · FLL Continuous Measurement Thermometer
Cleared on Nov 20, 2018 as substantially equivalent to K171214 (Shenzhen Brav Electronic Technologies Co., Ltd., 2018) after a 106-day review. Its family tree reaches back 5 generations to 2001. 2 later devices descend from it.
- Decided
- Nov 20, 2018
- Review
- 106 days
- Class
- Class II
- Product code
- FLL
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 5 generations to K010462 (2001). 6 ancestors in all. 2 later devices descend from it, 1 citing it directly.
- Root · 5 generations backK010462 Avita Piccolo/Exato Infared Ear Thermometer (TS2 & TS4 Series)Avita Corporation · 2001
- 4 generations backK031503 Avita TS8/TS9 Series IR Ear/Forehead ThermometerAvita Corporation · 2003
- 3 generations backK052849 Infrared Thermometer, Fdir-V1Famidoc Technology Co., Ltd. · 2005
- 2 generations backK113761 Infrared ThermometerFamidoc Technology Co., Ltd. · 2012
- 1 generation backK171214 Infrared ThermometerShenzhen Brav Electronic Technologies Co., Ltd. · 2018
- This deviceK182133 Infrared ThermometerShenzhen AOJ Medical Technology Co., Ltd. · 2018
- Descendant · cites it directly · 1 of its ownK221039 Infrared Thermometer, models AOJ-20A, AOJ-20B, AOJ-20C, AOJ-20D…Shenzhen AOJ Medical Technology Co., Ltd. · 2022
- Descendant · 2 generations on · 0 of its ownK232128 Infrared Thermometer (AOJ-20A); Infrared Thermometer (AOJ-20Y)Shenzhen AOJ Medical Technology Co., Ltd. · 2023
Most influential descendants
Showing 2 of 2 · See all- K221039Infrared Thermometer, models AOJ-20A, AOJ-20B, AOJ-20C, AOJ-20D, AOJ-20E, AOJ-20F…Shenzhen AOJ Medical Technology Co., Ltd. · 2022 · cites it directly1descendant
- K232128Infrared Thermometer (AOJ-20A); Infrared Thermometer (AOJ-20Y)Shenzhen AOJ Medical Technology Co., Ltd. · 2023 · 2 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K010462 | Avita Piccolo/Exato Infared Ear Thermometer (TS2 & TS4 Series) | Avita Corporation | 2001 | — |
| −4 | K031503 | Avita TS8/TS9 Series IR Ear/Forehead Thermometer | Avita Corporation | 2003 | — |
| −3 | K052849 | Infrared Thermometer, Fdir-V1 | Famidoc Technology Co., Ltd. | 2005 | — |
| −2 | K113761 | Infrared Thermometer | Famidoc Technology Co., Ltd. | 2012 | — |
| −1 | K171214 | Infrared Thermometer | Shenzhen Brav Electronic Technologies Co., Ltd. | 2018 | — |
| 0 (this device) | K182133 | Infrared Thermometer | Shenzhen AOJ Medical Technology Co., Ltd. | 2018 | — |
| +1 | K221039 | Infrared Thermometer, models AOJ-20A, AOJ-20B, AOJ-20C, AOJ-20D, AOJ-20E… | Shenzhen AOJ Medical Technology Co., Ltd. | 2022 | — |
| +2 | K232128 | Infrared Thermometer (AOJ-20A); Infrared Thermometer (AOJ-20Y) | Shenzhen AOJ Medical Technology Co., Ltd. | 2023 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2001 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2022 | 1 | 0 |
| 2023 | 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 |
|---|---|---|---|
| * | K171214 | Infrared ThermometerSummary page 4…Regulatory Class: Class II 3. Predicate Shenzhen Brav Electronic Technologies Co., Ltd., EFT-165 Infrared Thermometer Device(s): /K171214 4. Device The infrared thermometers (AOJ-20A and AOJ-20B) are handheld instruments, Description: which can… | 2018 |
What descends from it? (2)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K221039 | Infrared Thermometer, models AOJ-20A, AOJ-20B, AOJ-20C, AOJ-20D, AOJ-20E, AOJ-20F… | 2022 | 1 |
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 17 years and passes through 4 companies; a new generation was cleared every 2.5 years on median.
- None of the 6 ancestors has a recall.
- Of its descendants, K221039 (Shenzhen AOJ Medical Technology Co., Ltd., 2022) has gone furthest, with 1 descendant of its own.
- 3 other devices also cite its predicate K171214.
How does its category compare?
All FLL devicesFLL Continuous Measurement Thermometer: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, 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 thermometers (AOJ-20A and AOJ-20B) take human body temperature via the eardrum or forehead. They apply to all age groups except for babies under three months. Both devices apply to both professional use and home use.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K182133 · printed Nov 6, 2026
Cite this page
510(k) Report. “K182133: 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/K182133
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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