220V 1000W Boiler Thermostat Circulator Pump Regulator Temperature Controller 28TC 220V 1000W Boiler Thermostat Circulator Pump Mechanical Temperature Controller Intelligent Control With Sensor Features:The pump automatically starts working when the water temperature reaches the set temperature, the pump automatically stops working when the water temperature is below the set temperature. Specification: Voltage: 220V Power Consumption: 3W Temperature Range: 0 to 100 °C Hysteresis Temperature: 5 Degree Celsius Temperature Switch Deviation: ± 2Ambient Temperature: -5 to 50 Degree Celsius Size: 122mm*90mm*46mm(L*W*H) Outdoor Sensor: 1m Wire Length, Rubber Package. Measuring Range: 5-100 Degree Current: 5A Load: ± 2°C Installation Method: Firstly, the thermostat fixed at 1m away from the boiler, the temperature sensor sticks to the highest point in the water boiler, the pump power connects with the thermostat, and please also connect the thermostat with the main power supply. After the thermostat instructions lights up, the thermostat can work. Set the temperature control dial to set the desired temperature. Safety Precautions1. The temperature sensor prohibits the stick surface above 100 degrees, for example: the surface of the stove chimney.2. The boiler surface temperature there is some difference in temperature with the circulating water temperature, but it does not affect the automatic circulation of the pump.3. The power connections must be tightened or not working properly.4. Size for manual measurement, there may be 0 to 2mm error, belongs to the normal phenomenon. Package Included:1x Thermostat Controller with Sensor