Thermometer ya infrared ndi thermometer yomwe imapangitsa kutentha kuchokera kugawo lina la cheza chotenthetsera chomwe nthawi zina chimatchedwa ma radiation akuda omwe amatulutsidwa ndi chinthu chomwe chikuyezedwa.Nthawi zina amatchedwa ma thermometers a laser monga laser amagwiritsidwa ntchito kuthandizira thermometer, kapena zoyezera zomwe sizikukhudzana ndi kutentha kapena mfuti za kutentha, kufotokoza luso la chipangizo choyezera kutentha kuchokera patali.