Secutron MRI-2251B


Low profile Intelligent Photoelectric Sensor Plug-In (Requires a Low Profile 200 Series Base)

Availability: Estimated 6 - 8 Business Days

  • Factory New
Brand: Secutron Part #: 81017 Categories: , Manufacturer Part #: MRI-2251B Tags: ,


MRI-2251B photoelectric smoke detector provides a unique optical sensing chamber that senses smoke produced by a wide range of combustion sources.


Weight 0.35 lbs
Dimensions 6.1 × 6.1 × 2.00 in



  • Sleek, low profile design
  • Detectors are equipped with a built-in analog communications module
  • Smoke detectors are available with photoelectric or ionization technology
  • Photoelectric detectors are available with additional fixed temperature detection
  • Heat detectors are available as fixed temperature or fixed temperature with rate-of-rise detection
  • Dual LEDs indicate communications and activate steady when in alarm
  • Low profile base provides easy interchangeability
  • Low standby current
  • Rotary address switches
  • Magnetic test feature
  • Superior EMI protection
  • Sealed against dirt, insects, and back pressure


MRI-200 SERIES; Intelligent Low Profile Detectors
Secutron – Data Sheet


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