The SpectrAlert Advance SPSCWK-R (replacement model) is a white, outdoor speaker strobe for ceiling installation with selectable strobe settings of 15, 15/75, 30, 75, 95, 110 and 115 cd. Offers mounti
HN-A500I is a high efficient 500W Power/Booster amplifier provides audio signal amplification for public address and voice alarm system, It is reliable, efficient and light in weight.