Digital Thermostat with LCD Display, -40C to 110C Temperature Range, Micro Temperature Controller for Precision Climate Control

[Simple to Use]: The temperature range for this temperature controller is -40°C to 110°C. Easy to set and adjust, with HD LCD display and 4 buttons. This is a relay temperature controller; an external power supply is required for the load. [High Current 30A Relay]: Rated for 220V AC, 30A. Suitable for high-power equipment such as refrigerators, brooders, incubators, fermenters, and greenhouses. Connect the power supply and heating/cooling device, place the sensor, and set the desired temperature — it will operate reliably. [Heating/Cooling Function]: Heating Mode ('H'): When the measured temperature is less than or equal to the set temperature minus hysteresis, the relay activates and the heating device turns on. When the measured temperature reaches or exceeds the set temperature, the relay deactivates and the heating device turns off. Cooling Mode ('C') operates on the same principle, but in reverse. [Delay Start & Temperature Correction Function]: Delay Start ('OPH'): After a heating or cooling cycle completes, the system begins a timer 'T'. Once 'T' reaches or exceeds the OPH value, the next heating or cooling cycle starts. Temperature Correction ('OFE', range: -10.0°C to +10.0°C): Compensates for long-term measurement drift. Actual temperature = measured temperature + correction value. [High Temperature Alarm Function]: If the actual temperature reaches or exceeds the alarm threshold, the system activates audible and visual alarms and disconnects the relay. Press any button to silence the alarm. Setup Steps: 1. Connect the sensor to the controller. 2. Connect the controller to its power supply. 3. Set the start temperature, stop temperature, and temperature correction value. 4. Disconnect the controller’s power supply. 5. Connect the load (heating/cooling device) to the relay output terminals, ensuring proper power supply connections. 6. Reconnect the controller to its power supply. 7. Test and begin operation. Color: As shown.