4W-B

The SpectrAlert Advance PC2RK is a red, two-wire, ceiling-mount, outdoor horn strobe with selectable strobe settings of 15, 15/75, 30, 75, 95, 110 and 115 cd. Outdoor back box included.

The L-Series SEP-SPSWL is a ALERT, amber lens, white strobe and speaker strobe expander plate (full candela range) back box skirt.

The 4WTR-B is a 4-wire, photoelectric i3 smoke detector with thermal sensor and Form C relay.

Photoelectronic Low-Profile Plug-In Detector for Special Applications Note: For pendent mount applications where remote testing is NOT needed, the 2151 needs to be used with either the B114LP or B114

The SpectrAlert Advance series offers the most versatile and easy-to-use line of low frequency sounder and low frequency sounder strobes in the industry.

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.