KT88 Temperature Controller Thermostat Digital Thermostat Regulator Temperature Control Switch Output 10A 220V AC Product name: Digital temperature controller Size:100mm(L)x55mm(W)x32mm(D) Cutting Size: 75mm(L)x55mm(W)x32mm(D) Temperature measurement range: -50 ~ + 110 C Temperature Control Range: -19~99C Temperature measuring accuracy: 0.3 C Resolution: 1 C Accuracy: 1 C Temperature measuring probe: NTC10K / B3435 Length of wire: 94cm Power supply voltage: DC12V AC 220V 110V ( Optional ) Display colors: red yellow The output type: Relay 10A / AC 220V, the load needs to connect with a independent power supply Note: There is no output voltage of the controller. This controller is kind of a switch, it turn on/off the equipment. You need to connect a power supply to the load. 1 x Temperature Controller WIRE CONNECTION Instruction If the temperature is between the start and stop temperature, the relay is on. It is off when the temperature reach the stop temperature SET function switch/ ON/OFF At on state, long pre SET for 3 seconds to turn on the controller. If it is off when power off, it will stay off when power on. At off state, pre SET to turn on, if it is on when power off. It will stay on when power on. At working state, pre SET to choose F-1, F-2, F-3 ( These are attached functions , it is nothing to do with the controller setting, set it as you need ) F-1 Intermittent work Left : Start working setting(Minute) Right: Stop working setting(Minute ) F-2 Time off Left: hour Right: Minute Max setting: 99 hours 59 minutes F-3 Time on Left: hour Right: Minute Max setting: 99 hours 59 minutes Temperature Calbration Unplug the controller, pre SET, enter temperature calibration function, display - -000- - , you can add/subtract the temperature base on the temperature before calibration. Max Range -9.9C~99C, after calibrating, current temperature=before calibrating temperature + calibration value Self test function Both Pre the buttons up and down , and power on, then it will enter self-test function Reset Both Pre the buttons up and down , and power on, turn on the controller , then it will display 88-888-88, the buzzer beeps, then reset done. Heating Cooling mode Start temperature < stop temperature = Heating Mode Start temperature > stop temperature = Cooling Mode >> >> See more thermostat from ketotek: