510(k) Report

510(k) · Cleared

Recalled · Class II · 2022

Ysi 400 Series Atuoclavable Reusable Temperature Probe

K962070510(k) TraditionalCleared Jul 19, 199652-day reviewClass II21 CFR 880.2910Recalls 2

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

Yellow Springs Instrument Co., Inc. · FLL Continuous Measurement Thermometer

Cleared on Jul 19, 1996 after a 52-day review. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known. 15 later devices descend from it. It has been recalled 2 times.

Decided
Jul 19, 1996
Review
52 days
Class
Class II
Product code
FLL
Recalls
2
Predicates
0

15 later devices descend from it, 2 citing it directly.

Descendants, by year cleared 2012: 1 descendant cleared2005: 1 descendant cleared2013: 1 descendant cleared2021: 2 descendants cleared2025: 1 descendant cleared2020: 2 descendants cleared2018: 3 descendants cleared2019: 2 descendants cleared2026: 1 descendant cleared2023: 1 descendant cleared1995200020052010201520202025
  1. This deviceK962070 Ysi 400 Series Atuoclavable Reusable Temperature ProbeYellow Springs Instrument Co., Inc. · 1996
  2. Descendant · cites it directly · 14 of its ownK050837 Reusable Temperature Probes (M1024254 Skin Temperature Probe…GE Healthcare · 2005
  3. Descendant · cites it directly · 8 of its ownK121427 Unimed Temperature ProbeUnimed Medical Supplies, Inc. · 2012
  4. Descendant · 2 generations on · 5 of its ownK121999 General Purpose Temperature Probe, Skin Temperature ProbeDraeger Medical GmbH · 2013
  5. Descendant · 3 generations on · 2 of its ownK181967 Disposable Temperature ProbeShenzhen Launch Electrical Co., Ltd. · 2018
  6. Descendant · 2 generations on · 1 of its ownK193338 Med-link Reusable Temperature Probes, Med-link Disposable…Shenzhen Med-Link Electronics Tech Co., Ltd. · 2020

Showing 5 of 15 descendants. See all descendants

Descendants cleared per year

2005: 12012: 12013: 12018: 32019: 22020: 22021: 22023: 12025: 12026: 1
2005high 3 (2018) · low 0 (2006)2026

Most influential descendants

Showing 5 of 15 · See all
  • K050837Reusable Temperature Probes (M1024254 Skin Temperature Probe, Reusable; M1024247, GP…GE Healthcare · 2005 · cites it directly14descendants
  • K121427Unimed Temperature ProbeUnimed Medical Supplies, Inc. · 2012 · cites it directly8descendants
  • K121999General Purpose Temperature Probe, Skin Temperature ProbeDraeger Medical GmbH · 2013 · 2 generations on5descendants
  • K181967Disposable Temperature ProbeShenzhen Launch Electrical Co., Ltd. · 2018 · 3 generations on2descendants
  • K193338Med-link Reusable Temperature Probes, Med-link Disposable Temperature ProbesShenzhen Med-Link Electronics Tech Co., Ltd. · 2020 · 2 generations on1descendant
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K962070Ysi 400 Series Atuoclavable Reusable Temperature ProbeYellow Springs Instrument Co., Inc.1996—
+1K050837Reusable Temperature Probes (M1024254 Skin Temperature Probe, Reusable…GE Healthcare2005—
+1K121427Unimed Temperature ProbeUnimed Medical Supplies, Inc.2012—
+2K121999General Purpose Temperature Probe, Skin Temperature ProbeDraeger Medical GmbH2013—
+3K181967Disposable Temperature ProbeShenzhen Launch Electrical Co., Ltd.2018—
+2K193338Med-link Reusable Temperature Probes, Med-link Disposable Temperature ProbesShenzhen Med-Link Electronics Tech Co., Ltd.2020—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200510
201210
201310
201830
201920
202020
202120
202310
202510
202610
FIG. 1 — Lineage of K962070, 1996–2026Source: 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), 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
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What was it cleared against?

FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

What descends from it? (15)

See all 15

2 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K050837Reusable Temperature Probes (M1024254 Skin Temperature Probe, Reusable; M1024247, GP…GE Healthcare200514
K121427Unimed Temperature ProbeUnimed Medical Supplies, Inc.20128

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

Recalls of this device

DateClassRecallRoot causeReason
Feb 7, 2022Class IIZ-0926-2022Device DesignUpdate to instructions for use regarding the cleaning and disinfection process for the reusable probes.
Mar 13, 2017Class IIZ-0395-2018OtherThe reusable temperature probes are provided with instructions for sterilization that have not been proven through a validation study.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • Of its descendants, K050837 (GE Healthcare, 2005) has gone furthest, with 14 descendants of its own.

How does its category compare?

All FLL devices

FLL Continuous Measurement Thermometer: FDA decisions, review times, recalls and adverse event reports over 20 years.

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—
Cite this page

510(k) Report. “K962070: Ysi 400 Series Atuoclavable Reusable Temperature Probe.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K962070

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Record history
  • FDA decision record loaded May 2, 2026
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026