Fire Alarm Collection
Wheelock NS-24MCW
Manufacturer
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Wheelock
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Model
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NS-24MCW
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Device type
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Electronic horn/strobe
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Voltage
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24 VDC
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Strobe intensity
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Field-selectable to 15, 30, 75, or 110 candela
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Notes
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Removed from 1616 P Street NW in Washington DC during a fire alarm upgrade in 2012, where all of the audible notification appliances, previously a combination of Wheelock AH and NS horns, were replaced with System Sensor bells and Wheelock RSSP strobes. See "New fire alarms at work… again…" in the Journal for more details. This particular horn went off right over my head in June 2009 when the alarm system malfunctioned. See "Two fire alarms in one day?" in the Journal for more details.
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![Wheelock NS-24MCW, rear Wheelock NS-24MCW, rear](https://files.schuminweb.com/odds-and-ends/alarm-collection/feature-size/wheelock-ns-24mcw-02.jpg)
![Wheelock NS-24MCW Wheelock NS-24MCW](https://files.schuminweb.com/odds-and-ends/alarm-collection/feature-size/wheelock-ns-24mcw-04.jpg)
![Wheelock NS-24MCW, faceplate back Wheelock NS-24MCW, faceplate back](https://files.schuminweb.com/odds-and-ends/alarm-collection/feature-size/wheelock-ns-24mcw-06.jpg)
![Wheelock NS-24MCW, faceplate removed Wheelock NS-24MCW, faceplate removed](https://files.schuminweb.com/odds-and-ends/alarm-collection/feature-size/wheelock-ns-24mcw-08.jpg)
![Wheelock NS-24MCW, detail of strobe intensity needle Wheelock NS-24MCW, detail of strobe intensity needle](https://files.schuminweb.com/odds-and-ends/alarm-collection/feature-size/wheelock-ns-24mcw-10.jpg)
![Wheelock NS-24MCW, label Wheelock NS-24MCW, label](https://files.schuminweb.com/odds-and-ends/alarm-collection/feature-size/wheelock-ns-24mcw-11.jpg)
![This specific horn, in service at 1616 P Street NW, April 14, 2011 This specific horn, in service at 1616 P Street NW, April 14, 2011](https://files.schuminweb.com/odds-and-ends/alarm-collection/feature-size/wheelock-ns-24mcw-12.jpg)
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