STI Stopper II Pull Station Protective Covers

The SpectrAlert® Advance MHR is the red, 12/24-volt mini-horn used where a smaller notification device is desired.

The SpectrAlert Advance SWK is a white, outdoor strobe with selectable strobe settings of 15, 15/75, 30, 75, 95, 110 and 115 cd.

Low Frequency (520 Hz) Intelligent Reversible, Sounder base designed for new and existing dwelling unit applications.

The SpectrAlert Advance P2WK-P is an unmarked, white, two-wire, outdoor horn strobe with selectable strobe settings of 15, 15/75, 30, 75, 95, 110 and 115 cd. Outdoor back box included.

L-Series, red, wall surface-mountable back box.

L-Series, red, wall-mountable, clear lens, 2-wire, horn strobe that is unmarked. Selectable strobe settings: 15, 30, 75, 95, 110, 135, and 185 cd.