Features: 1Quick Setting: The temperature adjustment is very easy with rotating knob while the convertible display enables convenient reading. 2Smart Control: Allows for simple wireless operation through WiFi and APP you can have more flexibility in controlling your radiator. 3Simple Timing: The programmable timing function will better help you building a more comfortable living environment full of warmth. 4Easy Cleaning: Routine decalcification is carried out every Monday protecting the valve from calcification. CR will be display on the screen during decalcification. 5The Installation: Designed to have M30 x 1.5mm connecting interface the lightweight and compact radiator valve is simple to install. Specification: Item Type: Smart Radiator ValveCurrent Consumption: 100mA maximum. Battery: 3 x AA battery which is not included. Setting Range: 5~35Ambient Temperature: 0~50Protection Grade: IP20Connecting Diameter: M30 x 1.5mm / 0.06in (approx.)Weight: 229 g / 8.08 oz(approx.) Package List: 1 xSmart Radiator Valve1 x User Manual6 x Connector1 x Screw1 x Nut