The tado Wireless Smart Thermostat V3+ Starter Kit comes with a smart wireless thermostat, a tado Internet Bridge and a tado wireless receiver and is ideal when you have a boiler but no thermostat or a boiler connected to a wireless thermostat. The thermostat communicates with the boiler via the wireless receiver. More highlights and features: - Integrated temperature, ambient light and humidity sensors - Open window detection - Takes local weather forecasts into account - Heating system monitoring and consumption and activity statistics - Smart timer and individual room control - Remote control from anywhere with the app (free download) Includes: - tado wireless temperature sensor - tado Internet Bridge (connects tado system with your router for easy control via the app) - tado wireless receiver - AC adapter (UK and EU) - USB cable - Ethernet cable - 3-wire cable - 3 x AAA batteries - Mounting accessories (2 x 2 wall mounting screws, 2 x 2 wall plugs, 2 x insulators) Data encryption: TLS 1.2 (SSL) 2048-bit Extended Validation Certificate TLS 1.2 (SSL) 256-bit elliptic curve encryption AES-CCM encryption