The 2151 low-profile photoelectronic detector uses a state-of-the-art optical sensing chamber. This detector is designed to provide open area protection and to be used with compatible UL listed contro
The SpectrAlert Advance SPSWK is a white, outdoor speaker strobe for wall installations with selectable strobe settings of 15, 15/75, 30, 75, 95, 110 and 115 cd.
The SD-651 is designed to meet the performance criteria designated by UL. Its sensing chambers are sealed against back pressure air flow, dirt, and insects.