Features: - Control temperature by setting the temperature setting value and the difference value. - Digital and high accuracy temperature controller, the output is a 20A relay that meets a variety of high power loads. - Can be used for water tanks, refrigerators, industrial chillers, steamers, industrial equipment, etc. - Connect the control circuit to power the controller, and the display shows the ambient temperature. Specification. Model: W3230 Voltage: DC 110-220/12V/24V(optional) Resolution: -9.9~99.9 when 0.1℃ other temperature section 1℃ Temperature control range: -50℃~110℃ Temperature measurement accuracy: 0.1℃ Control accuracy: 0.1℃ Detection probe: NTC waterproof probe Output capacity: 1-way relay output capacity 20A Environmental requirements: -10℃~60℃ Humidity: 20%~85% Size: 79mm*43mm*26mm Sensor wire: 1 meter Display color: red+blue Measurement input: NTC (10K 0.5%) waterproof type sensor Output: One-way 20A relay Data saving: Yes Feature: high accuracy, digital, waterproof Instructions: Step 1, connect the power supply and equipment, you can supply power to the controller, which is displayed as measuring temperature. Step 2, press the SET button once, and the display temperature will flash. Step 3, press +- to set the desired temperature (press +- to quickly raise and lower). After setting, press SET to confirm the return. Step 4, at this time, the controller automatically performs relay on and off according to the setting. Package includes: 1 x Temperature Controller 1 x 1m Probe Cable Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.