LCD Digital Thermometer Temperature Monitor with External Probe For Fridge Freezer Fridge Aquarium This is a portable temperature sensor, easy to carry and let you know the environment temperature around you anywhere . It can also be used for testing object temperature by metal sensor.It come with a mounting clamp which allows it to be mounted on any surface plane. Specification: Temperature range: -50 ~ + 110C / -58F ~ + 199F Operating temperature: -10C to +50C -14F ~ +122F Using Humidity: 5%~80% Accuracy: 1F Temperature Distinguish: 0.1 F Unit dimensions: 48*28*15mm Cable length: 1M. Power: 2 x 1.5V LR44 button batteries (included) Black color Weight: 30g Package Included: 1x LCD Digital Thermometer Temp Temperature Sensor 2x 1.5V LR44 Button Cell Batteries