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The 4WTA-B is a 4-wire, photoelectric i3 smoke detector with thermal sensor and built-in sounder.

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

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

The BEAM1224 is a 4-wire, single-ended, reflected type beam smoke detector that includes an 8" reflector.

The BEAM1224 is a 4-wire, single-ended, reflected type beam smoke detector that includes an 8" reflector and an integral sensitivity test.

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.

The SpectrAlert Advance SA-WBBCW is a white separate ship, ceiling-mount, outdoor back box.

The SpectrAlert Advance SA-WBBW is a white separate ship, wall-mount, outdoor back box.

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

L-Series, white, ceiling surface-mountable back box.

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

L-Series, white, compact footprint, wall surface-mountable back box.

The SpectrAlert Advance SBBR is a red surface mount back box for wall installations.

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

L-Series, red, wall surface-mountable back box for speakers and speaker strobes.

The SpectrAlert Advance SBBSPW is a white surface mount back box for wall installations.

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

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

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

The L-Series SPSEP-BBSWL is a white expander plate back box skirt