Thermometer ya infrated ndi thermometer yomwe imakonda kutentha kuchokera gawo la ma radiation yamatenthedwe nthawi zina imatchedwa radiation yakuda yomwe imayesedwa ndi chinthu. Nthawi zina amatchedwa andrmometers a laser ngati laser amagwiritsidwa ntchito pofunafuna cholinga cha thermometer, kapena osalumikizana ndi ma thermometer kapena mfuti zamagetsi, kufotokoza momwe chipangizocho chikuyeza kutentha kutali