Shaun Cuff on X: "This weekend's #vintagewatch is a Casio TSR-100, released in 1994. The watch features a thermo scanner - an infrared non-contact thermometer that measures radiant heat from an object.
Operation OK Casio Casio Triple Sensor TSR-110 Thermos Canner digital watch men | eBay
CASIO Thermo Scanner TSR-100 Watch from 1990's | eBay
Thermo-scanner watch, bonkers but useful. | WatchUSeek Watch Forums
Casio TSR 100 - Thermo Scanner - Extremely rare vintage watch from 1990 : r/casiovintage