The LP20RF is a dual channel programmer providing 7 day time control of heating and the hot water pre-heat function if required. The LP20RF is wirelessly linked to the Digistat+RF which provides temperature control of the heating. The traditional dial on Digistat+RF makes it really simple for homeowners to adjust the temperature as required. - 7 day programmes - 3 on/off periods per day - Pre-programmed on/off periods - Dedicated advance buttons - 12 or 24 hour back-lit digital display - Holiday function - Simple wireless installation - Wireless receiver built into the LP devices - Signal strength indicator - Automatic summer/winter time updates - Pre-wired with PCB connector.