Be able to display measured temperature/humidity and stablish setpoints for controlling environment conditions.Heating/Cooling & Humidify/Dehumidify functions could be set separately.Supporting Temp and Humidity Calibration.Applications: Bird incubators, Fridge Units and Greenhouses.Specifications:Power supply: 110-220VAC 10%, 50/60HzMeasurement temperature range: -20 C ~ +80 CMeasuring humidity range: 00%RH+100%RHAccuracy: 1C 0.1%RHRelay output contact capacity: 10A/240VAC,Integrated sensor, line length 1 meterShell material: gray ABS flame retardant plastic shellUser manual: STC-3028TemperatureControl(Buttons marked with number 1)Heater:Start->Long press “up” button until the number flashes and adjust your lower setpoint (Default 20C)Stop->Long press “down” button until the number flashes and adjust your upper setpoint (Default 30C)Cooler:Start->Long press “up” button until the number flashes and adjust yourupper setpointStop->Long press “down” button until the number flashes and adjust your lower setpointHumidityControl(Buttons marked with number 2)Humidifier:Start->Long press “up” button until the number flashes and adjust yourlower setpoint(Default 40%)Stop->Long press “down” button until the number flashes and adjust yourupper setpoint(Default 60%)Dehumidifier:Start->Long press “up” button until the number flashes and adjust yourupper setpointStop->Long press “down” button until the number flashes and adjust yourlower setpoint