4W-B means Four Wire, Base mounted smoke detector in
Commercial
Similar to 4W-B
ACFX - Air-Cooled Flooded Chiller
ACFZ - Arctic Cooling FreeZer
ACG - Additive Congruential Generator
ACG - All Condition Gear
ACH - Absorption Chiller Heater
ACID - Amstrad Cartridge Identification Device
ACLD - Active Constrained Layer Damping
View all in Commercial