33 x 12.5mm LCD Automotive Air Conditioning Digital Thermometer - Black (1 x AAA)
Temperature range: internal temperature: -30'C~50'C; The outside temperature: -50'C~70'C; Accuracy: +/- 1'C; Resolution: > >20'C is 0.1 <=20'C is 1; Input Power: 1 x 1.5V AAA alkaline battery (not included) Measuring inputs: 2 NTC temperature sensor; Environmental Requirements: Temperature: -10'C~60'C; Humidity: 20% ~ 85%; Clock Display: No time display