EXTECH 401014 Big Digit Indoor/Outdoor Thermometer

Indoor temperature: 14 to 140°F (-10 to 60°C)
Outdoor temperature: -58 to 158°F (-50 to 70°C)
Resolution: 0.1° for F (0.1° for C)
Accuracy: ±1.8°F (±1°C) from 32 to 122°F (0 to 50°C), ±3.6°F from -58 to 32°F and 122 to 158°F (±2°C from -50 to 0°C and +50 to +70°C)
Power supply: One (1) AAA 1.5 V battery
Sensor cable length: Approx. 9inch (3m)
Dimensions: 3.9x4.25x0.75" (99x108x19mm)

Datasheet

Manual