Salus iT500BM Internet Enabled Programmable Thermostat The Salus iT500BM uses smart technology to control your heating for one central heating zone and from your phone, tablet or iPad. The iT500BM can be used with the following three receivers to allow usage with various combination boilers; RXBC605, RXVBC605 and RXWBC605, thus giving you more choice and the option to control your heating from your phone. The Salus iT500BM has a stylish LCD and comes already paired. PRODUCT SPECIFICATION Supply 2 x AA Batteries Scale 5-35 Frequency 868MHz Other Information: - Complies with the warranties of all leading boiler manufacturers - Wall or surface mount thermostat - Touch controls - Built-in start up programming for quick installation - Frequency 868 MHz (30 metre .