Feature: 1. Programmable: The thermostatic valve supports manual setting of a weekly schedule with 4 periods per day, providing you with maximum convenience for different situations. 2. Energy Saving: Users set the upper and lower temperature limits in the APP, when the temperature reaches the threshold, it will stop the operation of the device, and when the temperature is detected to plummet, it will stop heating. 3. Rotatable Screen: The temperature control valve has a rotatable screen that allows you to read it from different angles, providing a more comfortable user experience. 4. Remote Control: Users can control the temperature of your house in real time anytime and anywhere through for Smart life, for Smart RM app. 5. Widely Used: Temperature control valve can be connected with other devices through wireless internet, suitable for residential, shopping mall, hotel heating temperature control, etc. Specification: Item Type: Smart Thermostatic Radiator Valve Material: Flame retardant PC Intelligent Thermostatic Radiator Valve (TRV): 4 x AA batteries, 2 batteries per radiator valve (shipped without batteries) Display: 2 x AAA batteries (shipped without batteries) Control Mode: For Smart life, for RM App, for Google Home Connection Protocol: For ZigBee, WIFI Display Accuracy: 0.5℃ Backlight: White Probe Sensor: NTC (10k) 1% Limit Adjustment Temperature Range: 1-70℃ Default Temperature Adjustment Range: 5-35℃ Temperature Display Range: 1-70℃ Operating Ambient Temperature: -10-60℃ Insulation Conditions: Normal Environment (0-50℃) Thread Size: M30 x 1.5mm (TRV) Maximum Route: 4.5mm (TRV) Operation Program: Set up every 1 week. Package List: 2 x Smart Thermostatic Radiator Valve1 x Display Screen10 x Accessory2 x Screw2 x Nut1 x Instruction