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A PASS device (personal alert safety system), also known as a distress signal unit (DSU) or ADSU (automatic distress signal unit), is a personal safety device used primarily by firefighters entering a hazardous or "immediately dangerous to life and health" environment such as a burning building.
A Knox Box can cut fire losses for building owners since firefighters can enter buildings without breaking doors or windows. It can also reduce the potential of a firefighter being injured forcing entry. The disadvantage of the system is that it provides a single point of failure for the security of many buildings. If the key to a district's ...
Jargon, brand-name of early radio-frequency paging system for summoning firefighters. The Pig A blunt forcible entry tool. Pineapple Tool used to help suppress a basement fire. Pipeman The firefighter who is on the nozzle attacking the fire. Plug Slang term for a fire hydrant. This survives from the days when water mains actually had holes in ...
It has since become one of the leading sources of user-generated reviews and ratings for businesses. Yelp grew in usage and raised several rounds of funding in the following years. By 2010, it had $30 million in revenue, and the website had published about 4.5 million crowd-sourced reviews. From 2009 to 2012, Yelp expanded throughout Europe and ...
[21] [non-primary source needed] Other features may include Bluetooth connection to voice amplifiers or portable radios, digital heads-up displays, built-in infrared cameras, ePAR (electronic personal accountability report) system, point of view video recording, [22] and digital screens allowing the firefighter to more easily check their air ...
Electronic sirens incorporate circuits such as oscillators, modulators, and amplifiers to synthesize a selected siren tone (wail, yelp, pierce/priority/phaser, hi-lo, scan, airhorn, manual, and a few more) which is played through external speakers. It is not unusual, especially in the case of modern fire engines, to see an emergency vehicle ...
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Fire detection – fire alarm systems and brigade call systems; Active fire protection – fire suppression systems; Passive fire protection – fire and smoke barriers, space separation; Smoke control and management; Escape facilities – emergency exits, fire lifts, etc. Building design, layout, and space planning; Fire prevention programs