W3230 20A Digital Temperature Controller Thermostat DC 12V 24V AC110-220V Introduction: The high-brightness digital tube clearly displays, whether it is used during the day or at night, it can be read clearly The sensor can be replaced at will by using the 2P terminal. When you need to use other probes, you can replace it at will ABS material shell, exquisite and beautiful, high mechanical strength, good electrical performance -50~120℃ ultra-wide temperature control range, can be used in various temperature control fields, 0.1℃ temperature control accuracy, to meet your control needs Wiring input and output design, more convenient to use in various industrial control equipment   Product parameters: Supply voltage: DC 12V/DC 24V/AC 110V~220V Temperature control range: -55℃~120℃ Temperature control accuracy: 0.1℃ Hysteresis accuracy: 0.1℃ Refresh rate: 0.32s Output: 1-way relay Environmental requirements: -10~60℃ Humidity: 20%-85% Probe type: NTC10K/B3950, Size: 79mm*43mm*26mm   Instructions for use: Indicator status: flashing means cooling or heating start delay, steady light means the relay is closed, no light means the relay is disconnected. If the delay timing is turned on, during the delay timing, the light flashes and the relay is in the disconnected state. Digital tube: ① The PV digital tube is a red display digital tube, and the displayed value is the actual temperature value tested. When an abnormality occurs, the corresponding abnormal sign is displayed, and "LLL" is displayed as the sensor open-circuit display code, and "HHH" is displayed for the forced disconnection of the relay. The display code means that the measured temperature exceeds the maximum measurement range of the product. The thermostat will forcibly disconnect the relay, and the display "---" is the high temperature alarm display code after the high temperature alarm is set and the set maximum value is exceeded. The SV digital tube is a blue display digital tube, and the displayed value is the on-off temperature value of the relay. After pressing the "SET" button, the digital tube flashes. At this time, you can use the up arrow "" and the down arrow " " to make the value. Addition and subtraction. Main menu setting: Press and hold the "SET" button for 3s to enter the main menu setting, continue to press "SET" to switch the P0-P8 mode, press the up arrow "" and the down arrow " " to set the corresponding mode. Long press the "SET" button for 3 seconds, or no button action within 8 seconds will automatically confirm the return. Switch: Press and hold "Restart" for 1.5s to turn off the display and relay, and press "Restart" again for 1.5s to turn on the display.   Shipping list: W3230 Thermostat* 1