# K030961: Microlife Digital Basal Thermometer, Model MT 1921

- Pathway: 510(k) (Traditional)
- Applicant: Microlife Corp.
- Decided: Sep 12, 2003 after 169 days
- Product code: LHD (Device, Fertility Diagnostic, Proceptive)
- Device class: U
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. The summary cites one number, which could not be confirmed as its predicate (listed below).

## Cited in the summary but kept off the family tree
- K094527: B-D Digital Basal Thermometer, Model 524560. Not in FDA’s 510(k), De Novo or PMA lists as we hold them (a misreading, a typo, or a number FDA does not list), so it is kept off the family tree

## Indications for use
The Microlife Digital Basal Thermometer is a device intended for measuring, and aiding in the monitoring and tracking of basal body temperature (BBT) as an aid in ovulation prediction to aid in conception (not to be used for contraception).

Source page: https://510kreport.com/device/K030961
Methodology: https://510kreport.com/methodology