LCD Fridge Freezer Temperature Refrigerator Digital Thermometer -50 ~ +99 degree Celsius 1M Probe HK Temperature measurement range:-50  ~ + 70 Resolution: 0.1 Use environment: temperature: 0  ~ + 60 ; Humidity: 5% ~ 80% Sensor: thermal resistor sensor, the line 0.8 meters long The machine size: 48 mm  28 mm by 15 mm