Tuya ZigBee 3 Radiator Actuator Thermostat,Smart TRV Thermostatic Valve Temperature Controller,Work for Alexa Google HomeDescription: 1. Power supply: Two AAA 1 alkaline batteries (LR6)2. Temperature sensor : NTC3. Temperature accuracy: ±1℃ 4. Display range : 0-60℃ 5. Temperature surroundings : 5-35℃6. Applicable temperature:0~50℃7. ZigBee standard: IEEE 802. Communication frequency: 2: 【Voice control】 Compatible with Xiaodu, Aleax, and Yandex【 APP Control 】 The intelligent temperature controller would be managed through method of a telephone before returning home. (App: Tuya)【Manual/Automatic Mode 】 You can freely make a choice from instruction manual or automatic modes.【Accurate temperature】: The inner sensor is a floor sensor that will sense the ambient temperature and surface temperature. Automatically obtain temperature with an accuracy of 1°C.【 Programmable Weekly 】 The temperature controller helps varied temperature settings for 6 time modes according to day.【 Window opening operate 】 When the window is opened, causing the room temperature to drop via technique of more than 6 ℃ inside four minutes, the display screen displays "OP" and closes the valve. If the room temperature rises via three ℃, this function can be released, or it can be launched after 48 minutes or manually.【 Waterproof scaling operate 】 If the valve of the heat sink is not completely opened as quickly as within two weeks or used for an extended time, it will set off the valve to be blocked thanks to immoderate scale, and the warmth sink will not be capable of use. To ensure the regular use of the heat sink, the controller will automatically open the valve completely each two weeks and run for 30 seconds, by which the display screen will show "Ad". After running, the operation can be restored.【Children's lock】:The keyboard lock function is designed to forestall youth from by accident working it.【 Purpose】 Suitable for heating radiators. Perfect for homes, offices, searching malls, hotels, etcPackage Included: 1 set * (1 temperature control valve, 1 instruction manual)