![]() ![]() vehicle safety device with potential explosion hazard during vehicle extrication if not already blown. inflatable device used for lifting or spreading 2. ![]() Air monitoring meter Electronic device for measuring the presence of one or more chemicals in air, such as oxygen, carbon monoxide, hydrogen sulfide or volatile organic compounds may have preset danger threshold alarms. Aerial ladder platform A hydraulic aerial device which combines an aerial ladder with a personal carrying platform supported at the end of a ladder. Aerial ladder A rotating, power-operated (usually hydraulically) ladder mounted on a self-propelled automotive fire apparatus. May also carry other portable ladders and tools. Aerial fire apparatus Fire truck, meeting National Fire Protection Association (NFPA) Standard 1901, Motor Fire Apparatus, Chapter 6 and Chapter 18, having a multi-section extending ladder, raised using power shifted from the truck's propulsion engine. Also known as a PASS device (personal alert safety system) or PDA (personal distress alarm). May be integral to SCBA or separately activated. It can be activated manually by the firefighter, or activates automatically if the firefighter stops moving. Automatic distress signal unit ( ADSU) An alarm device that signals that a firefighter is in trouble. Wetting agents may be added to the water and AFFF foam can be used in similar extinguishers. Air pressurized water (APW) fire extinguisher A hand held fire extinguisher using water for the extinguishing agent which is expelled by compressed air. Adapters between multiple hoses are called wye, Siamese, or distributor, which see below. May contain combinations, such as a double-female reducer. See also reducer, increaser, double male, double female. A Adapter Fitting for connecting hose couplings with dissimilar threads but with the same inside diameter. ![]()
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