System Sensor RTS151KEY

The System Sensor RTS151KEY(A) is an automatic fire detector accessory designed to test remotely located duct and beam detectors. For 4-wire detectors, the RTS151KEY(A) features a multi-colored LED that alternates between steady green and red. Green indicates power and that the detector board is in place. Red indicates alarm. For 2-wire detectors, the LED will show red for alarm.