4-Wire Photoelectric Duct Smoke Detector

The SpectrAlert Advance HRK-R (replacement model) is a red, 12/24-volt horn for outdoor ceiling or wall installation. Offers mounting plate only - no back box included.

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

System Sensor L-Series selectable output speaker strobes and dual-voltage evacuation speakers can reduce ground faults and enable faster installation with lower current draw and modern aesthetics.

The SpectrAlert Advance P2WK is a 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.

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.

L-Series, green lens, used for any indoor ceiling-mountable strobes.