Shoots faster than his shadow - thanks to laser

What for? Flap, battery pure flap. Imprints. Measurement result read. Done.
Three more buttons: Laser pointer switches on / off, display backlight switches on / off, switch Celsius / Fahrenheit.

Hmm, the deviation from the reference thermometer is something big. Perhaps a look in the manual ...?
Aha, the measurement result is inaccurate if the gun is subjected to a large change in temperature. Sure, they come straight out of the icy package car in my warm apartment - which shines a even my physics laity.

30 minutes later: Perfect measuring results! I sause through the apartment in search of thermal bridges and thanks in the spirit of the neighbors under me for my "floor heating". Other: Holds up to pleasant, responds quickly, stores the measured value when you release the trigger. Recommended.