Features 1、AUTOMATIC OR MANUAL MODE: Choose thermostat automatic or manual mode to meet your needs while saving energy. Automatic mode has four time programs for each day of the week, giving you the freedom to independently make your daily schedule, so your comfort setting matches your time very well 2、ENERGY SAVING: If needed, only use a heating plan to heat your home to the right temperature to save energy 3、UPGRADE SUPPORT: APP control thermostat software full stack supports remote upgrades, continuous functionality and product performance optimization 4、ACCURATE AND RELIABLE: The thermostat valve can set the temperature between 3-35℃ with a temperature measurement error of 3℃ 5、TECHNICAL PARAMETERS: The standby current of the smart radiator valve is 5uA, the ambient temperature is 0‑50℃, the surface temperature is up to 90℃, and the protection level is IP20 Specification Item Type: Smart Radiator Thermostat Control Mode: 1. Intelligent timing 2. Mobile phone remote control Set Temperature: 3-35℃ Temperature Measurement Error: 3℃ Power Supply: 3 x 1.5V AA battery(not include) Standby Current: 5uA minimum Ambient Temperature: 0-50℃ Surface Temperature: Maximum 90℃ Protection Level: IP20 Radiator Connection: M30 x 1.5mm Linear Travel: Approx. 6mm / 0.24in Package List 1 x Temperature Controller 1 x User Manual 1 x Screw 1 x Nut 6 x Accessories