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  UTC (Formerly GE Security/ESL) 521B 500 Series 2 Wire Smoke Detector
521B GE Security | JMAC Supply
 
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Product Code: UTC-GE-ESL-521B
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UTC (Formerly GE Security/ESL) 521B 500 Series 2 Wire Smoke Detector


The UTC-GE-ESL-521B 2-wire smoke sensor continually monitors its ownsensitivity and operational status, and provides a visual indication if it drifts out of sensitivity range or fails internal diagnostics.

Time between cleaning detectors is dramatically increased because of the 521's built-in drift compensation. This feature, usually only available in analog systems, allows the detector to automatically adjust its sensitivity over time as it becomes dirty, increasing dust life. And when the 521 indicates that cleaning is necessary, it's literally a snap with ESL's patented field replaceable optical chamber.

The 521B is equipped with a CleanMe signal which performs remote maintenance that reduces false alarms.
Features:
  • CleanMe - Remote maintenance reporting reduces false alarms
  • Field replaceable optical chamber makes servicing a snap
  • Built-in drift compensation reduces false alarms
  • Plug-in terminal block
  • Small, low-profile design blends in with any environment
  • Compatible with most fire and security panels
Technical Specifications:
  • Operating Voltage 6.5 - 33 VDC
  • Curent Draw: 0.07 mA standby, 60 mA alarm
  • Operating Temperature: 0 degreesC to 37 degreesC
  • Operating Humidity: 0 to 95%
  • Dimensions (o x H): 120 x 50 mm


Average Customer Review: 5 of 5 | Total Reviews: 2 Write a review.

  11 of 11 people found the following review helpful:
 
Review left on 3/4/2013
Reviewer: Sade Ferguson from East Amana, IA  
Purchased the UTC (Formerly GE Security/ESL) 521B

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  6 of 6 people found the following review helpful:
 
Review left on 7/20/2013
Reviewer: Lily Mejia from Lakeland, MI  
Purchased the UTC (Formerly GE Security/ESL) 521B

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