The L-Series HRL-LF (red) and HWL-LF (white) are 2-wire, 24 volt, 520Hz, wall sounders.
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, chime strobe that is unmarked. Selectable strobe settings: 15, 30, 75, 95, 110, 135 and 185 cd.
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, white, wall-mountable, amber lens, speaker strobe with standard cd. Designed for ECS/MNS applications.
The SpectrAlert Advance SCRHK is a red, ceiling-mount, outdoor strobe with selectable high-candela strobe settings of 135, 150, 177 and 185 cd.