The Hive Receiver Dual SLR2d is for use with a programmable Hive Thermostst for central heating radiators and hot water in a conventional boiler central heating system. It is compatible with all Hive systems. The square-shaped Receiver is mounted on the wall. With app control and Ethernet smart home protocol, this white-coloured device offers auto system switching and frost protection properties and operating at 240V, this Receiver from Hive is a convenient and efficient choice for controlling independent Hive thermostats maintaining ideal home temperatures.