Connect the power supply and equipment to supply power to the controller. At this time, it displays the measured temperature. Press SET once, and the displayed temperature will flash; press + or - to set the desired temperature (press and hold to quickly increase or decrease). After setting, press SET to confirm and return. The controller automatically performs relay on/off based on the set value. The thermostat output is a 20A relay, suitable for various high-power loads. When the control circuit is connected, the thermostat can be powered. The display shows the ambient temperature. Indicator light: Blinking indicates cooling or heating start delay; steady light indicates operation. Features: - Controls temperature by setting the temperature setpoint and differential value. - Digital high-accuracy temperature controller with 20A relay output, compatible with various high-power applications. - Suitable for use in water tanks, refrigerators, industrial chillers, steamers, and industrial equipment. - Connect the control circuit to power the controller; the display shows ambient temperature. Specifications: Product Name: W3230 Temperature Controller Digital Display Temperature Controller Module Power Supply: DC 12V / DC 24V / AC 110-220V Temperature Control Range: -55°C to 120°C Resolution: 0.1°C (-9.9 to 99.9); 1°C (outside this range) Display Color: Red/Blue Measurement Accuracy: ±0.1°C Control Accuracy: 0.1°C Sensor: NTC10K Waterproof Sensor Output: Relay Contact Capacity 20A 12V / 10A 220V Operating Environment: -10°C to 60°C, Humidity 20%–85% RH Dimensions: 79mm x 43mm x 26mm Cutout Size: 73mm x 39mm Sensor Cable Length: 1 meter Functions: P0: Cooling or Heating Mode P1: Differential Setting P2: Maximum Temperature Upper Limit P3: Minimum Temperature Lower Limit P4: Temperature Correction P5: Delay Start Time (unit: minute) Package Includes: 1 x Temperature Controller 1 x 1m Probe Cable Note: Due to lighting and screen setting differences, the item color may vary slightly from images. Slight dimensional variations may occur due to manual measurement.