# K043110: Microlife Instant Digital Electronic Thermometer, Model MT18L1

- Pathway: 510(k) (Special)
- Applicant: Microlife Intellectual Property GmbH
- Decided: Dec 9, 2004 after 29 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: 4 generations back to K943695 (1995). 4 ancestors in all.
5 later devices descend from it; 3 cite it directly.
0 of 10 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K031958: Microlife Instant Digital Electronic Thermometer, Model QT1JA1, Microlife Intellectual Property GmbH (2003) Summary page 1.

## Most influential descendants
- K152975: VDT985US Vicks SmartTemp Thermometer (2016), 3 descendants of its own
- K180131: Vicks RapidRead Digital Thermometer (2018), 2 descendants of its own
- K202791: iHealth Clinical Digital Thermometer (2021), 1 descendant of its own
- K211352: Electronic Thermometer (XHF2001, XHF2002) (2021), 0 descendants of its own
- K070590: Microlife Instant Digital Electronic Thermometer, Model MT19S1R (2007), 0 descendants of its own

## Indications for use
The Microlife MT 1811 Instant Digital Thermometer is used for the intermittent measurement and monitoring of human body temperature, orally, rectally and under the arm. The device is for the adult and pediatric population.

Source page: https://510kreport.com/device/K043110
Methodology: https://510kreport.com/methodology