F1 - Unit seting-F1 Function (factory default is degree celsius). Storage transportation: -20 ℃ ~ + 55 ℃ (-68.0℉~+131.0℉), relative humidity: ≤93%. Digital Infrared Baby Temperature Ear Forehead Body Thermometer Gauge Adult Kids. $43.95. Details about Digital Infrared Temperature Ear Forehead Body Thermometer Gauge Adult Kids ZM.