The FRM-1 Relay Control Module is intended for use in intelligent, two-wire systems where the individual address of each module is selected using the built-in rotary switches.
This unique and patented device has been helping stop false fire alarms around the world for more than 25 years, without restricting legitimate alarms.
Robust aluminium housing, IP66-compliance and fire-resistant cable: everything you need for a loudspeaker in harsh applications?! Adjust the angle with the included universal swivel bracket and enjoy