System Sensor 1251

Ionization Smoke Detector

  • Factory New
  • Material Obsolete
Brand: No Resources Part #: 4891 Category: Manufacturer Part #: 1251


Model 1251 intelligent ionization sensor uses a state-of-the-art sensing chamber. These sensors are designed to provide open area protection and are intended for use with compatible control panels only. Two LEDs on each sensor light to provide a local, visible sensor indication. The LEDs can be latched on by code command from the control panel for an alarm indication. The LEDs can also be unlatched to the normal condition by code command. Remote LED annunciator capability is also available as an optional accessory (RA400Z).


Weight 0.2 lbs
Production Status



System Sensor

Product Notes

Replacement: 2151

1251 Plug-in Intelligent Ionization Sensor with Communications

System Sensor - Installation Instructions