The MX-900 is equipped with a bright easy to read LCD screen. The screen labels the six hard buttons (easy to find by feel) positioned on the right hand side of the screen. In combination with a Complete Control RF Base Station, the MX-900 can control your system without being in line-of-sight of the equipment. Either the MRF-350 / MRF-300 or the MRF-250 RF base station is compatible with the MX-900. All incorporate RF addressing. RF Addressing gives you the ability to control equipment locations throughout the home, even if they are concealed in other rooms or are behind closed doors.
Your installer may recommend the MX-900i. The specifications are exactly the same except that i-series products operate at a 433MHz (the other RF products transmit and receive at 418MHz). All i-series remotes must be matched with i-series base stations.