510(k) · Cleared

Cleared

Digital Clinical Thermometer, Model KD-193

K021851510(k) AbbreviatedCleared Jul 17, 200242-day reviewClass II21 CFR 880.2910

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

K-Jump Health Co., Ltd. · FLL Continuous Measurement Thermometer

Cleared on Jul 17, 2002 as substantially equivalent to K903590 (K-Jump Health Co., Ltd., 1990) and 1 other predicate after a 42-day review. Its family tree reaches back 1 generation to 1990.

Decided: Jul 17, 2002
Review: 42 days
Class: Class II
Product code: FLL
Recalls: None
Predicates: 2

Its longest line of descent runs back 1 generation to K903590 (1990). 2 ancestors in all. No later device cites it as a predicate yet.

By dateBy generation

Root · 1 generation backK903590 Kejump Digital Clinical ThermometerK-Jump Health Co., Ltd. · 1990
This deviceK021851 Digital Clinical Thermometer, Model KD-193K-Jump Health Co., Ltd. · 2002

View FIG. 1 as a table

Line of descent and top descendants

Generation	Number	Device	Applicant	Decided	Recalls
−1	K903590	Kejump Digital Clinical Thermometer	K-Jump Health Co., Ltd.	1990	—
0 (this device)	K021851	Digital Clinical Thermometer, Model KD-193	K-Jump Health Co., Ltd.	2002	—

Other ancestors by year cleared

Year cleared	Devices	With a Class I recall
1995	1	0

FIG. 1 — Lineage of K021851, 1990–2002Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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

Get a 510(k) Report

What was it cleared against? (2)

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	Applicant	Decided	Recalls
*	K903590	Kejump Digital Clinical Thermometer Summary page 2 …ttent Determination of Patient Temperature standard. Substantial Equivalence The device is substantially equivalent to K-jump's Digital Clinical Thermometer (K903590)and Advanced Bioresearch ASSOC.'S SureTempB Electronic Thermometer (K943695). The devices share the same intended use an indicati…	K-Jump Health Co., Ltd.	1990	—
*	K943695	Suretemp Summary page 2 …e The device is substantially equivalent to K-jump's Digital Clinical Thermometer (K903590)and Advanced Bioresearch ASSOC.'S SureTempB Electronic Thermometer (K943695). The devices share the same intended use an indication for use and are technologically identical. \\\DC - 69983/0001~…	Advanced Bioresearch Assoc.	1995	—

Also cleared against K903590: 2 other devices →

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?

None of the 2 ancestors has a recall.
2 other devices also cite its predicate K903590.

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

2007high 43 (2021) · low 3 (2015)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · FLL

131in 2025

2007high 295 (2023) · low 59 (2008)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · FLL

1in 2025

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

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

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 Digital Clinical Thermometer Model KD-193 is intended to measure the human body temperature and is specifically indicated to operate in either predictive mode or regular mode orally, rectally or under the arm.

Indications for use as stated in the FDA summary.

https://510kreport.com/device/K021851 · printed Nov 6, 2026

Cite this page

510(k) Report. “K021851: Digital Clinical Thermometer, Model KD-193.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K021851

Report an extraction error

Are you the manufacturer?

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