Lth3gtthe choice rstat9 wireless room thermostatlth3gt ltpgtthe unit comprises of a portable battery powered thermostat transmitter for accurate temperature control and a separate wall mounted mains relay box receiverltpgt ltpgtthe transmitter is located in the main living area and the receiver is mounted close to the boilerltpgt ltpgtthis programmable room thermostat has been designed to bring you comfort and energy economy it allows you to program and regu