Features:100% brand new and high quality Wide temperature measuring range. Heating and cooling control. Temperature calibration function. Delay protection function. All parameters can be set to default setting after short circuit. A mini digital temperature controller with large and clear LCD display for better readability. Used for domestic freezer, water tanks, refrigerator, industrial chiller, boiler, steamer, industrial equipments and other temperature-controlled systems. Specifications:Control range: -50C - 110 Resolution: 0.1(9.9 ~ 99.9) and Other temperature period 1 Measurement precision: 0.1 Control precision: 0.1 Measurement error: 0.1 Refresh rate: 0.5 S Input power: 12V Measurement of the input:NTC10K 0.5%Waterproof type sensor Output: 12V 20A Environmental Requirement: -10~60 Humidity 20%-85% Overall power consumption: Static electricity: 35MA , operating current:65MA Size: Approx. 3.07x2.02inch/7.8 x 5.9cm (Mounting holes M3. The diagonal 75mm) Cable Length: 34cm How to Use:Connect the power supplier and the device,which can power the controller. At the same time,it shows the measurement temperature, and pre the ""SET"" button, the temperature of display flashes, then pre + - to set the desired temperature (hold down the + -, which can quickly lift up and down). When the setting is completed,pre the set button, then the controller automatically performs power cut-off y by setting! The thermostat outputs 10A to meet a variety of high-power load. Link the good control circuit which can power the thermostat, and the display shows the ambient temperature. Package Included:1 x Digital LCD Thermostat 1 x Connection Cables