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  2. System Sensor - Wikipedia

    en.wikipedia.org/wiki/System_Sensor

    The SpectrAlert series included horn strobes, strobes, remote horns, chimes, chime strobes, speakers, and speaker strobes. A main feature of these alarms was the ability to sync them using a System Sensor MDL sync module or the System Sensor sync protocol on a supported fire alarm control panel. Three years after the initial release of the ...

  3. Wheelock (brand) - Wikipedia

    en.wikipedia.org/wiki/Wheelock_(brand)

    A Wheelock AS horn/strobe. In 1995, Wheelock introduced the AS, a combination horn and strobe. The AS was first created with a vertical position strobe on the right side of the horn, except for 110 candela models, which used a horizontal strobe. In 1997 when the NS was introduced, the strobe on all AS models was moved to the horizontal position.

  4. craigslist - Wikipedia

    en.wikipedia.org/wiki/Craigslist

    Craigslist headquarters in the Inner Sunset District of San Francisco prior to 2010. The site serves more than 20 billion [17] page views per month, putting it in 72nd place overall among websites worldwide and 11th place overall among websites in the United States (per Alexa.com on June 28, 2016), with more than 49.4 million unique monthly visitors in the United States alone (per Compete.com ...

  5. Vehicle horn - Wikipedia

    en.wikipedia.org/wiki/Vehicle_horn

    A horn is a sound-making device installed on motor vehicles, trains, boats, and other types of vehicles. The sound it makes usually resembles a “honk” (older vehicles) or a “beep” (modern vehicles). The driver uses the horn to warn others of the vehicle's presence or approach, or to call attention to some hazard.

  6. Nathan Manufacturing - Wikipedia

    en.wikipedia.org/wiki/Nathan_Manufacturing

    A K5LA (K-5LA) Horn on top of a Coaster San Diego cab car. Nathan Manufacturing, Inc. is a division of Micro Precision Group which manufactures Airchime, Ltd. train horns mainly for North America. It is one of two major train horn manufacturers in the United States, with Leslie Controls, Inc. being the other.

  7. “I’m Done”: 60 People Who Quit Jobs On The Very First Day ...

    www.aol.com/lifestyle/m-done-60-people-quit...

    Image credits: Sir_Atlass #9. The owners daughter showed up to open 1.5 hours late. Said she thought her mom had given me keys. Proceeded to tell me to unload her car before I could come in and ...

  8. Electrical equipment in hazardous areas - Wikipedia

    en.wikipedia.org/wiki/Electrical_equipment_in...

    A special standard for instrumentation is IEC/EN 60079–27, describing requirements for Fieldbus Intrinsically Safe Concept (FISCO) (zone 0, 1 or 2) (This special standard has been withdrawn, and has been partially replaced by: IEC/EN60079-11:2011 and IEC/EN60079-25:2010) IEC/EN 60079-25 IEC/EN 60079-11 IEC/EN60079-27 'ia': Zone 0 & 'ib': Zone 1

  9. Emergency vehicle equipment - Wikipedia

    en.wikipedia.org/wiki/Emergency_vehicle_equipment

    A fire truck uses an air horn to alert cars of its presence. Air horn - These devices force compressed air from the vehicle's air brake system against a diaphragm, creating a loud noise. Air horns used on emergency vehicles usually have a distinctive tone so they can easily be distinguished from other large vehicles, commanding urgency.