Bosch Security FLM-325-I4-AI


Contact monitor with isolator class A 4″
Can be wired for Class A or Class B circuits, has built‐in short circuit isolator circuitry, mounted to a cover plate for a 4‐inch square or double gang electrical back box, bi‐colored LED provides module status, compatible with 254 addresses

Availability: Estimated 6 - 8 Business Days

  • Factory New
Brand: Bosch Security Part #: 50578 Categories: , , Manufacturer Part #: FLM-325-I4-AI


The FLM-325-I4-A and FLM-325-I4-AI modules are used to connect standard Normally Open or Normally Closed dry contact types of fire alarm devices such as pull stations or water flow devices. The modules are mounted to a cover plate for a

4‐inch square or double‐gang electrical back box. A bi‐colored LED provides the module status.


Weight 1.25 lbs
Dimensions 1.40 × 4.20 × 4.70 in






  • Monitors Normally Open (NO) or Normally Closed (NC) contacts
  • Monitored Normally Closed (NC) contacts can be configured with or without EOL resistor
  • Module address programming with the D5070 Analog Device Programmer
  • Bi‐colored LED provides module status
  • Digital data communications and power over a two‐wire circuit


FLM-325-I4-A Contact Monitors
Bosch Security – Data Sheet – 2018

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