The SpectrAlert Advance SPSCWK-CLR-ALERT is a white, outdoor speaker strobe with clear leans and ALERT pad print for ceiling installations with selectable strobe settings of 15, 15/75, 30, 75, 95, 110
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