This receiver can be used to control an electric garage door opening system exterior house lights etc. by pressing the button on your remote transmitter as supplied with the Shark car alarm systems. Alternatively a second transmitter can be purchased if preferred. The receiver can switch up to 10A & can be programmed to provide a momentary pulsed output a latching output or a 1 second timed output. The receiver has a range up to 45m 150ft. & requires a 12 Vdc power supply not included. Please note that the remote receiver is NOT supplied with a transmitter. Maximum switching voltage is 50V. A suitable rated slave relay will have to be used if mains operated devices are to be used in conjunction with this device.