The SpectrAlert Advance P2WHK-P is an unmarked, white, two-wire, outdoor horn strobe with selectable high-candela strobe settings of 135, 150, 177 and 185 cd. Outdoor back box included.
The SpectrAlert Advance P2RHK is a red, two-wire, outdoor horn strobe with selectable high-candela strobe settings of 135, 150, 177 and 185 cd. Outdoor back box included.
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.