Welcome to our store! 1. WORKING RANGE: The temperature control range of the digital temperature controller is -50-120℃, with a wide application range and strong practicality. 2. DIGITAL DISPLAY: Intelligent temperature control switch module, which has a clear digital display, convenient and intuitive, ensuring accurate operation. 3. 2 WORKING MODES: The temperature controller module has PO cooling and heating modes, which can be switched at any time for convenient operation. 4. CLEAR OPERATION: The intelligent temperature controller can display real-time and setting temperature, with working indicator light, efficient and time-saving. 5. WITH PROBE CABLE: The temperature switch module has a compact size, equipped with a probe, which can be used in more measurement situations. Item Type: Digital Temperature Controller Temperature Control Range: -50-120℃ Input Voltage: AC110-220V Operation Method: Connect the power supply and the equipment to supply power to the controller. At this time, it is displayed as the measured temperature. Press the SET button once, and the temperature on the display will flash. Press + - to set the desired temperature (press + - to quickly raise and lower). When the setting is complete, press SET to confirm and return. At this time, the controller will press the setting to automatically turn the relay on and off! The output of the temperature controller is a 20A relay to meet various high loads. When the control circuit is connected, power can be supplied to the temperature controller. At this time, the display shows the ambient temperature. PO Cooling and Heating Mode: Press and hold SET for 5 seconds to display P0, press SET once to set the SET5 working mode, and press +- to switch. H is the heating mode and C is the cooling mode. Press SET once to return. Press SET for a long time or press SET for 10 seconds. The controller will automatically confirm completion. In cooling mode: When the temperature reading is ≥ the temperature setting, the cooling relay is closed and the refrigerator starts; When the temperature reading is ≤ the temperature setting return difference, the cooling relay is disconnected and the refrigerator is turned off. P1 Return Difference Setting: Press and hold SET for 5 seconds to display P0, press eleven to switch to P1, press SET once to set the return difference, press eleven to set the return difference to 0.1-15, press SET once to return after completion, press SET for a long time or press the button free action control for 10 seconds to automatically confirm completion. In cooling mode: When the temperature reading is ≥ the set value, the relay is closed and the cooler starts; When the temperature reading is ≤ the set value return difference value, the relay is disconnected and the cooler is turned off. 1 x Temperature Controller Satisfaction Guarantee: Customers are our top priority. If you find any problems with the product, please contact the seller immediately. We strive to provide satisfactory customer service.