Thermostat Radiator Valve Product Features Wide Temperature Adjustment: Effortlessly adjust the room temperature between 5-35℃ to suit various seasons and individual preferences. Energy Efficiency: Save over 15% on energy costs by using this thermostat radiator valve—perfect for creating a smart, energy-efficient home. Easy Installation: Designed to fit all common radiator valves without needing to drain water or modify the heating system. Quick and easy installation process. Quick Heating Function: Enjoy rapid warmth with the additional heating feature; activate the valve for just 5 minutes. Ultra-Quiet Operation: The specially designed motor operates at less than 25 decibels, ensuring a peaceful environment. Multiple Control Options: Control via a mobile app, voice commands with Amazon Alexa and Google Assistant, or the responsive LCD touch screen. Note: The valve includes a child lock mode for added safety. Please note that batteries are not included in the packaging. Product Specifications Color Options: Black/White (Optional) Power Supply: 3V/2XAA Batteries (Batteries not included) Ambient Humidity: 5~95% RH (Non-Condensing) Maximum Stroke: 5.5mm Temperature Range: Set Temp. Range: 5~45℃ Ambient Temp.: 0~45℃ Display Temp. Range: 0~70℃ Storage Temp: -5~45℃ Protection Class: IP 20 Accuracy: ±0.5℃ Timing Error: <1% Control Interface: Touch Button Item Dimensions: 92 × 58 × 58mm Package Dimensions: 86 × 86 × 136mm Package Weight: 259g Package Contents 1 x Thermostat Radiator Valve 1 x User Manual