This digital temperature&humidity controller is perfect for various household, institutional & industrial heating and cooling applications.Specifications:Material: ABS (Flame-Retardant)Power Supply: 110-220VAC 10% 50/60Hz, DC 12V, DC 24V(Optional)Temperature Measurement Range: -20C ~ &43;80CHumidity Measurement Range: 00%RH ~ &43;100%RHAccuracy: 1C, 0.1%RHRelay Output Contact Capacity: 10A/240VACSensor Type: integrated sensorSensor Length: 1 meter (include the probe)Item Size: 8.6*7.5*3.5cm / 3.38*2.95*1.37inPackage Size: 10.5*8.2*5.4cm / 4.13*3.34*2.12inItem Weight: 126.6g / 4.46ozPackage Weight: 150.2g / 5.29ozNote:[Temperature Setting]Long press 1 3seconds, the starting temperature value flashed (default 20) Press the plus or minus button to adjust, long press 1 3seconds, stop the temperature value flash (default 30) press the plus or minus button to adjust.Long press 2 3seconds, the starting temperature value flashed (default 40) Press the plus or minus button to adjust, long press 2 3seconds, stop the temperature value flash (default 60) press the plus or minus button to adjust.Press 1 and 2 together for 3 seconds to reset the factory settings.Package List:1 * Temperature and Humidity Controller2 * Sensor Probe