Analogue Addressable Detectors

Photoelectric Detector

Product Overview

200 Series intelligent plug-in smoke sensors with integral communication provide features that far surpass those of conventional detectors. Manufactured by System Sensor, reliability is assured, along with a three year warranty from date of manufacture.

Individual sensor alarm thresholds are programmable within the control panel software. The smoke level in the sensor chamber is continuously monitored and reported to the panel. With the 200 Series addressable capability, each sensor’s address is easily set with decade address switches, giving the precise location of each sensor in the event of a fire or for selective maintenance when chamber contamination reaches an unacceptable level.


  • Sleek, low-profile design 
  • Same housing for both photo-electric and ionisation units 
  • Analogue addressable communications 
  • Stable communication technique with noise immunity 
  • Variable sensitivity to smoke 
  • Low standby current 
  • Rotary decade address switches, 1 to 159 
  • 159 sensors per loop (panel dependant) 
  • Dual red LEDs for 360º visibility 
  • Optional remote LED accessory


Product Code Description
2251BPI Analogue Addressable Photoelectric Smoke Detector excl Base
2251BPI+B Analogue Addressable Photoelectric Smoke Detector with Base