This Carbon MonoxideTransmitter is designed to be wired into a home or building alarm system, using a dry contact relay, and is operated by 2 AAA batteries.
Features:
When the panel is activated, the transmitter sends a wireless signal to a vareity of Silent Call 318 Mhz receiver up to 500 feet away, depending on which receiver you are using.
*** Should be installed by a licensed alarm company.
