510(k) · Cleared
ClearedM-50 Series SPO2 Sensor
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Beijing Choice Electronic Technololgy Co., Ltd. · DQA Oximeter
Cleared on Mar 4, 2009 as substantially equivalent to K072825 (Beijing Choice Electronic Technololgy Co., Ltd., 2008) after a 188-day review. Its family tree reaches back 4 generations to 2000. 1 later device descends from it.
- Decided
- Mar 4, 2009
- Review
- 188 days
- Class
- Class II
- Product code
- DQA
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 4 generations to K001085 (2000). 1 later device descends from it, 1 citing it directly.
- Root · 4 generations backK001085 Modification to Onyx, Finger Clip Pulse Oximeter, Model 9500Nonin Medical, Inc. · 2000
- 3 generations backK051107 Onyx II Finger Pulse Oximeter, Model 9550Nonin Medical, Inc. · 2005
- 2 generations backK070371 Fingertip Pulse Oximeter MD300CBeijing Choice Electronic Technololgy Co., Ltd. · 2007
- 1 generation backK072825 Fingertip Pulse Oximeter, Model MD300IBeijing Choice Electronic Technololgy Co., Ltd. · 2008
- This deviceK082487 M-50 Series SPO2 SensorBeijing Choice Electronic Technololgy Co., Ltd. · 2009
- Descendant · cites it directly · 0 of its ownK103685 Pulse Oximeter Sensor (Disposable and Reusable) Model RSA002DN…Beijing Rongrui-Century Scie. & Tech. Co., Ltd. · 2011
Most influential descendants
Showing 1 of 1 · See all- K103685Pulse Oximeter Sensor (Disposable and Reusable) Model RSA002DN, RSJ002DA, RSJ091DI…Beijing Rongrui-Century Scie. & Tech. Co., Ltd. · 2011 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −4 | K001085 | Modification to Onyx, Finger Clip Pulse Oximeter, Model 9500 | Nonin Medical, Inc. | 2000 | — |
| −3 | K051107 | Onyx II Finger Pulse Oximeter, Model 9550 | Nonin Medical, Inc. | 2005 | — |
| −2 | K070371 | Fingertip Pulse Oximeter MD300C | Beijing Choice Electronic Technololgy Co., Ltd. | 2007 | — |
| −1 | K072825 | Fingertip Pulse Oximeter, Model MD300I | Beijing Choice Electronic Technololgy Co., Ltd. | 2008 | — |
| 0 (this device) | K082487 | M-50 Series SPO2 Sensor | Beijing Choice Electronic Technololgy Co., Ltd. | 2009 | — |
| +1 | K103685 | Pulse Oximeter Sensor (Disposable and Reusable) Model RSA002DN, RSJ002DA… | Beijing Rongrui-Century Scie. & Tech. Co., Ltd. | 2011 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2011 | 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 DQA? 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 DQA device
- #1 K221282 Empatica Health Monitoring Platformscore 20.1 · 38 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 |
|---|---|---|---|
| * | K072825 | Fingertip Pulse Oximeter, Model MD300ISummary page 2…r III 510(k) Summary Report No.: TE20080616 3. Predicate Device M-50A SpO2' Sensor (legally market as the accessory of pulse oximter MD300I@K072825) Manufactured by: Beijing Choice Electronic Technology Co., Ltd. Room 1127-1128 Building B, Bailangyuan Fuxing Road, No. A36 Bei… | 2008 |
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 |
|---|---|---|---|
| K103685 | Pulse Oximeter Sensor (Disposable and Reusable) Model RSA002DN, RSJ002DA, RSJ091DI… | 2011 | 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 9 years and passes through 2 companies; a new generation was cleared every 2.2 years on median.
- None of the 4 ancestors has a recall.
- Of its descendants, K103685 (Beijing Rongrui-Century Scie. & Tech. Co., Ltd., 2011) has gone furthest, with 0 descendants of its own.
- 3 other devices also cite its predicate K072825.
How does its category compare?
All DQA devicesDQA Oximeter: FDA decisions, review times, recalls and adverse event reports over 20 years. 2009, this device’s year, is highlighted.
FDA decisions per year · DQA
15in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · DQA
182in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DQA
3in 2024
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · DQA
399in 2025
MAUDE reports naming product code DQA, 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 | 20 | 122 | 6 | 325 |
| 2008 | 22 | 97 | 5 | 312 |
| 2009 | 35 | 117 | 29 | 281 |
| 2010 | 29 | 127 | 4 | 185 |
| 2011 | 15 | 195 | 1 | 164 |
| 2012 | 14 | 120 | 0 | 322 |
| 2013 | 15 | 182 | 0 | 468 |
| 2014 | 11 | 175 | 2 | 1,124 |
| 2015 | 13 | 158 | 1 | 2,082 |
| 2016 | 14 | 246 | 0 | 1,775 |
| 2017 | 9 | 200 | 0 | 1,190 |
| 2018 | 18 | 260 | 32 | 694 |
| 2019 | 19 | 158 | 0 | 548 |
| 2020 | 15 | 126 | 0 | 426 |
| 2021 | 10 | 174 | 0 | 553 |
| 2022 | 20 | 265 | 0 | 478 |
| 2023 | 13 | 317 | 0 | 392 |
| 2024 | 14 | 285 | 3 | 545 |
| 2025 | 15 | 182 | 0 | 399 |
| 2026 | 8 | 187 | 0 | — |
What is it indicated for?
The M-50 Series SpO2 Sensor is intended for spot checking or continuous monitoring of functional arterial oxygen saturation and pulse rate in non-invasive with oximeter equipment.
The M-50A, M-50E and M-50G SpO2 Sensor is intended for adult patients in hospitals, hospital-type facilities, and home environments.
The M-50B and M-50H SpO2 Sensor is intended for pediatric patients in hospitals, hospital-type facilities, and home environments.
The M-50C SpO2 Sensor is intended for adult, pediatric, infant and neonatal patients in hospitals, hospital-type facilities, and home environments.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K082487 · printed Nov 4, 2026
Cite this page
510(k) Report. “K082487: M-50 Series SPO2 Sensor.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K082487
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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