Selectable Output Low Frequency Sounder SPRL

The OSI-R-SS is a 4-wire, single-ended, reflected type beam smoke detector that includes an 8" reflector and an integral sensitivity test.

Ceiling, Metal Weatherproof Back Box, White, for use with speaker strobes.

L-Series, white, wall-mountable, clear lens, 2-wire, compact footprint that fits in a single gang box, strobe marked "FIRE". Selectable strobe settings: 15, 30, 75, 95, 110, 135, and 185 cd.

The SpectrAlert Advance SPWK is a white, outdoor speaker for wall installation. Includes back box.

L-Series, red lens, used for any indoor wall-mountable strobes.

The SpectrAlert Advance P4WK is a white, four-wire, outdoor horn strobe with selectable strobe settings of 15, 15/75, 30, 75, 95, 110 and 115 cd. Outdoor back box included.