# K023956: Thermometer Models ST313C/F, ST314C/F, ST323C/F, ST324C/F, ST333C/F, ST334C/F

- Pathway: 510(k) (Traditional)
- Applicant: Mesure Technology Co., Ltd.
- Decided: Jun 17, 2004 after 568 days
- Product code: FLL (Continuous Measurement Thermometer)
- Device class: 2
- Regulation: 21 CFR 880.2910
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K003326 (2001). 1 ancestor in all.
34 later devices descend from it; 1 cites it directly.
0 of 36 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K003326: Funet Amy Mama Body Thermometer, Funai Radio & Communications Corp. (2001) Summary page 1.

## Most influential descendants
- K063542: Wireless Temperature Monitor / Models ST323C and ST323F. (2007), 33 descendants of its own
- K143267: TempTraq TT-100 (2015), 32 descendants of its own
- K162137: Fever Scout™ Continuous Monitoring thermometer (2017), 29 descendants of its own
- K181013: Fever Scout (2018), 26 descendants of its own
- K191272: Wearable Device, Wearable Package (2019), 16 descendants of its own

## Indications for use
The wireless temperature monitor, model ST313C/F, ST314C/F are the battery-operated electronic devices with intended use of measuring human body temperature precisely. This device is reusable and intended for wrist and abdomen temperature measurement of the baby less than eight years old, and the baby of eight years old.

Source page: https://510kreport.com/device/K023956
Methodology: https://510kreport.com/methodology