[Simple to Use]: The temperature range for this temperature controller is -40 to 110°C. Easy to set and adjust, featuring an HD LCD display and 4 control buttons. This is a relay-based temperature controller; an external power supply must be connected for the load.[High Current 30A Relay]: High power capacity: 220V AC, 30A. Suitable for high-power equipment such as refrigerators, brooders, incubators, fermenters, greenhouses, and more. Connect the power supply and heating or cooling devices, place the sensor probe, set the desired temperature, and the controller will operate efficiently.[Heating/Cooling Function]: Heating Mode (H): When the detected temperature is less than or equal to the set temperature minus hysteresis, the relay activates and the heating device turns on. When the detected temperature reaches the set point, the relay turns off and the heater stops. Cooling Mode (C) operates on the same principle for cooling devices.[Delay Start & Temperature Correction Function]: Delay Start (OPH): After a heating or cooling cycle completes, the system begins a timer (T). Once T equals the OPH setting, the next cycle can begin. Temperature Correction (OFE) (-10.0 to +10.0°C): Over extended use, minor temperature deviations may occur. This function allows calibration. Actual temperature = measured temperature + correction value.[High Temperature Alarm Function]: When the actual temperature reaches the alarm threshold, the system triggers an audible and visual alarm and automatically disconnects the relay. Press any button to silence the alarm.Use Steps:1. Connect the sensor to the controller.2. Power the controller.3. Set start temperature, stop temperature, and temperature correction.4. Disconnect power.5. Connect the load with power supply at the relay output terminal if required.6. Reconnect power to the controller.7. Test and begin operation.Color: As shown Material: Plastic Package Contents: 1 x XY-DT01 Digital Temperature Controller Note: Other items not included. Note: Lighting and display differences may cause slight color variation between the product image and actual item. Measurement error allowed is +/- 1-3 cm.