The SkyTech mrck (sr-1001) remote control system was developed to provide a safe, reliable, and user-friendly remote control system for gas heating appliances. The system is operated manually from the transmitter. The system operates on radio frequencies (rf) within a 20 ft. Range using non-directional signals. The system operates on one of 255 security codes that are programmed into the transmitter at the factory, the remote receiver must learn the transmitter code prior to initial use.