04Sep 2012
by The Safety Centre

System Sensor 2251E Smoke Detector Now Obsolete

The System Sensor 2251E was an analogue addressable optical type smoke detector for use on System Sensor protocol fire alarm system loop circuits.  This detector has now been made obsolete by System Sensor but has now been replaced by the System Sensor 22051-26-IV which can be used as a like for like replacement.
System Sensor 22051E-26-IV Smoke Detector


The System Sensor 22051E-26-IV uses the same B501 type detector base as the old 2251E unit and can be used as a like for like replacement.  This means that the detector can be simply installed into the existing base if it is a replacement for a faulty detector.  The System Sensor 22051E-26-IV Smoke Detector also has the same Ivory (Off-White) colour as the original 2251E detector, which means it will match the colour of the existing base.

If you’re interested in the 22051E-26-IV Detector you may also be interested in our Apollo Fire and Fire Alarm Panels ranges.