Analogue Addressable Detectors

Ionization Detector

Product Overview

1251BPI Ionization detectors incorporate a unique single source, dual chamber design to respond quickly and dependably to a broad range of fires. Address selection from 0 to 159 allows the use of 0 to 99 on F100A and 0 to 159 on F120A (fitted with compatible firmware).


  • Sleek, low-profile design
  • Same housing for both Photo-electronic and Ionisation models
  • Analogue Addressable communications
  • Automatic Drift Compensation
  • Stable communication technique with noise immunity
  • Variable Sensitivity to smoke
  • Low Standby Current┬áRotary Decade Address switches, 1 to 159
  • Up to 159 detectors per Loop (panel dependant)
  • Dual Red LEDs for 360┬║ visibility
  • Optional Remote LED accessory


Product Code Description
1251BPI Analogue Addressable Ion Smoke Detector excl Base
1251BPI+B Analogue Addressable Ion Smoke Detector with Base