Power supply voltage: 220VAC10% / 50Hz Temperature measurement range: -50 - 99 Temperature measurement accuracy:1 Load power:Cooling 16A, fan 10A, lighting 3A Power consumption of the whole machine:less than equal 5W Sensor cable length:/2.0 m Installation size:71x29mm(width x height) Front panel size:75x34.5mm(width x height) Whole machine size:75x34.5x64mm(width x height x depth) Parameter setting 1. In the running state, to control the light; 2. Set the temperature: and hold the Set key for more than 3 seconds to enter the internal parameter setting menu. The digital tube displays for the first time. the key to select the parameter code. the Set key again to enter the parameter value represented by the corresponding parameter code. the key or, key to add or subtract the current parameter value, and then the Set key to save the current parameter and return to the parameter code interface. the parameter key in any state to exit the parameter setting, automatically save, and return to the working state. 3. Forced cooling: In non-setting state, and hold the parameter key for more than 3 seconds to enter the forced cooling state. After forced cooling C3 time, it enters the normal working state. In the forced cooling state, and hold this key to exit forced cooling. Colour:Black Material:ABS Package Contents: 1 set * Digital display freezer thermostat Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.