WIFI Smart Boiler Thermostat with Receiver 3.5Inch LCD Display Intelligent Thermostat with Application & Voice Control Digital Programmable Thermostat Description: High-quality smart boiler thermostat including a transmitter (free-standing) and receiver (wall mounting) set with a transmission range of 100 m. Touch button operation is more flexible, and more experience. And you can also remotely control the thermostat by an app from your phone. Features: [Stable]Relying on stable RF wireless technology, the thermostat is paired with the receiver, the signal is stable, and the pairing speed is fast. [Smart Control]Supports application operation, easier for scheduling programs, set functions, and checks current states by the application.   [Multifunctional]With a 3.5inch large touch screen operation, more flexible and more experience. Support antifreeze function, child lock function, and humidity function. [Weekly-programmable]Smart thermostat support up to 6 events that can be set separately for each day. [Voice Control]You can use voice control through Home and Amazon Alexa for smart thermostats. Specifications: Color: White; Black (Optional) Type: Boiler 3A Design: Wi-Fi Material: PC Battery: 3*AA Batteries(Not Included) Wireless Frequency: 433MHz(FSK) Transmission distance: <=100m Power: 3W Display Accuracy: 0.1°C Temperature setting: 5-95°C Degree of conservation: IP20 Package Size：10.2*9.6*7cm Package Weight: 348g Packing List: 1 * Smart Thermostat 1 * Receiver 1 * Accessory Kit 1 * User manual