Parameters: Product name: high precision digital temperature controller Specifications: XH - W1411 Temperature measurement range: 55 ~ + 110 Temperature measuring accuracy: plus or minus 0.3 Resolution: 0.1 Temperature control range: - 19 ~ 99 Accuracy: 1 Temperature measuring probe: NTC10K/B3950 standard 1 meters waterproof probe Power supply voltage: DC12V AC220V Display colors: red, green, blue and yellow (optional) Applicable environment: - 25 to 55 degrees /20% - 80% (RH) The output type: 20A relay output Appearance size: 90 * 60 mm Hole size: 70 * 50 mm How to Use: 1. authors product plug screen display temperature on household socket, illustrate the power supply is connected correctly 2. put the temperature probe need to temperature control, according to the need to set the start and stop the temperature 3. the heating or cooling equipment power supply plug on the thermostat outlet temperature control can be realized Attention: Be sure to carefully read this manual first to use this product 1. this product is a three plugs please socket with ground wire 2. the thermostat host is not waterproof, avoid water, it is forbidden to bring into the bathroom to use or outdoor use 3. the use of power is greater than the product is forbidden nominal power or cause permanent damage and danger 4. the actual temperature control should pay attention to observe whether temperature control is executed correctly before leaving Package Included: 1 x Digital Temperature Controller _x000D_