W Temperature Controller AC110/220V LED Display Digital Thermostat 1500W Smart Microcomputer Precise Temperature Control W Temperature Controller AC110/220V LED Display Digital Thermostat 1500W Smart Microcomputer Precise Temperature Control How to restore factory settings? In the case of power on, please press and hold the up and down keys for about 3 seconds at the same time. After the digital tube displays 888, it will automatically jump to the detection temperature, indicating that the factory setting is restored successfully LLL-Digital tube shows LLL. If the digital tube displays LLL during use, it indicates that the sensor is faulty. Please repair the sensor or place HHH-Digital tube shows HHH. If the digital tube displays HHH during use, it indicates that the detected temperature exceeds the measurement range. Please change the use environment Specifications: Temperature measuring range:-58~248 Temperature control range: -58~248 Input power:AC110-220V Output power: 1500W Output type: direct output Output capacity: maximum 10A Temperature measurement accuracy: 0.1 Temperature control accuracy: 0.1 _x000D_