Silent Knight SD505-4AB 4-inch Addresable Base 09/03 CO sensor operation is similar

CO sensor operation is similar to other TrueAlarm sensors (photoelectric or heat)

The Cooper Wheelock WPSBB-W Weatherproof Back Box provides robust protection for outdoor fire alarm systems

Both surface and semi-flush mounting cabinet configurations maximize mounting flexibility and esthetic appeal

The Wheelock LHSW3 Exceder LED Strobe Horn expands to include the industry’s first LED emergency notification strobes in one of the smallest

Silent Knight SD505-4AB 4-inch Addresable Base 09/03 CO sensor operation is similarThe Silent Knight SD505 4AB 4 inch Addresable Base is a 4" Addressable Base for use with SK SD505APS Addressable Photoelectric Smoke Detectors. Compatible for use with the SD505 APS, SD505 AIS, and SD505 AHS.