The SpectrAlert Advance RFPW is a 9.5" x 7" white retrofit plate that covers the footprint of the legacy SpectrAlert wall-mount speaker strobe. Compatible with horn strobe and speaker strobe line.
FZM-1 is a standard-sized module used to monitor and supervise compatible two-wire, 24 volt, smoke detectors on a Class A (Style D) or Class B (Style B) circuit.