Everyday‘s Comfort and Savings Kasa Smart Thermostatic Radiator Valve Precise Temperature Control Kasa Smart Thermostatic Radiator Valve provides superior temperature precision from the moment it is installed. Get the exact temperature you set. Nothing more. Nothing less. 2s Fast Response Featuring a much faster reaction time than traditional radiator valves, restores the comfort temperature in no time. (The 2s reaction time refers to the period before thermostats detects a change in temperature and begins the process of compensating for it after the display is off.) Powerful Motor The Kasa Smart Thermostatic Radiator Valve houses a powerful motor, opening and closing most valves without a hitch. Precisely and smoothly control your radiators for the perfect temperature in seconds. Set Schedules and Save Set heating schedules based on your daily routines to make heating more efficient and save your money. Voice Control Ask Alexa or Google Assistant to fine-tune your home’s temperature. No need to get up from the sofa or move a finger. Control from Anywhere Control all your radiators in your home from your phone. No more guessing if you left the heater on in an empty room. Room-by-Room Comfort Set the perfect temperature for each room individually to maximize comfort in the whole house. Each hub can manage up to 32 radiators. Device Group Control Group together several smart radiator valves to give an overall room temperature and control them with one touch. Quick & Easy Installation Install it yourself with our step-by-step guide. Two AA batteries can easily last through an entire heating season. Compatibility Fits on most radiator valve body thread (M30x1.5) and three adapters given to allow more compatibility. Child Lock Prevent children from managing your radiator accidentally. Frost Protection Keep your pipes unfrozen and your house safe. Display: - Built-in display: Yes - Display type: LED Features: - Child lock: Yes - Control type: Rotary - Easy to install: Yes - Material: Polycarbonate - Mobile operating systems supported: Android 10/Android 10.0/Android 11.0/Android 12.0/Android 5.0/Android 5.1/Android 6.0/Android 7.0/Android 7.1/Android 7.1.2/Android 8.0/Android 9.0/iOS 10.0/iOS 11.0/iOS 11.4/iOS 12/iOS 13/iOS 13.4/iOS 14/iOS 14.5/iOS 15 - Operating frequency: 868 - Operating temperature (T-T): 0 - 40 - Product colour: White - Programmable: Yes - Remotely operated: Yes - Screw thread: M30 x 1.5mm - Smart thermostat: Yes - Smartphone/tablet remote support: Yes - Suitable for indoor use: Yes - Wireless connection: Yes - Works with Amazon Alexa: Yes - Works with the Google Assistant: Yes Packaging content: - Batteries included: Yes - Manual: Yes - Number of products included: 1 Packaging data: - Package type: Box Power: - Batteries required: Yes - Battery voltage: 1.5 - Number of batteries supported: 2 Sustainability: - Sustainability certificates: CE/RoHS/UKCA Vendor information: - Brand Name: TP-Link - Warranty: 1 Weight & dimensions: - Diameter: 5.65