Features: Real time clock function brings much convenience for your life. Power-down memory function and low temperature anti freeze protection. Temperature error calibration function and the buttons support full lock operation. Real-time room temperature monitoring, internal temperature control and external temperature limit dual temperature modes. With this high efficiency and energy saving thermostat, it drives down home energy costs and provides you comfortable living environment. The product adopts advanced intelligent micro control technology to detect the real-time room temperature and compare it with the preset temperature to control the start or shutdown of the heat source. Specification: Condition: 100% Brand New Voltage: 220V 50/60HZ Installation Method: Standard 86 mode Temperature Detection Accuracy: ±0.5℃ Housing Material: Flame resistant ABS + PC VO fire protection Temperature Setting: 5-35℃ Working Environment Temperature: -5-60℃ Resistive Load: <3A Inductive Load: <2A Resistive Load: 16A/25A Size: Approx. 8.1*8.5*4.5 cm / 3.2*3.3*1.8 in Weight: Approx. 308g / 10.9 oz Package list: 1 * Thermostat 1 * Cable 2 * Screws 1 * User Manual Note: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1、Real time clock function brings much convenience for your life 2、Power-down memory function and low temperature anti freeze protection 3、Temperature error calibration function and the buttons support full lock operation 4、Real-time room temperature monitoring, internal temperature control and external temperature limit dual temperature modes 5、With this high efficiency and energy saving thermostat, it drives down home energy costs and provides you comfortable living environment