The RT510TX is a stylish, simple to install and use wireless RF fully programmable room thermostat that can be paired with a range of compatible receivers. With built in ITLC (Internal Temperature Load Compensation) it is fully compliant with Boiler Plus. Item is to be installed in conjunction with Salus receiver RXVBC605, which is sold separately. FEATURES ITLC (Internal Temperature Load Compensation) Boiler Plus Compatible Sleep Mode Programmable time and temperature scheduling Frost Protection Desk Stand Simple Operation Frequency 868 MHz with 30 metre range Manual mode on thermostat to disable schedule Heating Boost Mode Holiday Mode Manual override Contemporary design RF Test Function Easy Installation.