[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-button interface. 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 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 probe, set the desired temperature, and the unit 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 or exceeds the set temperature, the relay disconnects and the heater stops. Cooling Mode 'C' operates on the same principle. [Delay Start & Temperature Correction Function]: Delay Start 'OPH': After completing a heating or cooling cycle, the system begins a timer 'T'. Once T is greater than or equal to OPH, the next cycle can begin. Temperature Correction 'OFE' (-10.0 to 10.0): Allows correction of temperature deviations that may occur during prolonged operation. Actual temperature = measured temperature + correction value. [High Temperature Alarm Function]: When the actual temperature reaches or exceeds the alarm threshold, the system triggers a visual and audible alarm and disconnects the relay. Press any button to silence the alarm. Use Steps: 1. Connect sensor to controller. 2. Connect power supply to controller. 3. Adjust start temperature, stop temperature, and temperature correction settings. 4. Disconnect power supply. 5. Connect load with power supply at the relay output terminal if required. 6. Reconnect power supply to 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. Light and screen display differences may cause slight color variations between image and actual item. Measurement error allowance: +/- 1-3 cm.