4W-B means Four Wire, Base mounted smoke detector in
Commercial
Similar to 4W-B
ABS - Anti Balance System
ABS - Anti-Ballistic Selenium
ABS - Anchor Bolt Stabilizer
ABS - Acrylonitrile Butadiene Styrene
ABS - Anti Blockier System
ABS - Agile Body Suit
ABSD - Achievable Buoy Station Dimension
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