Catalog > SYSTEM SENSOR M501M MINI MONITOR FIRE AL...

Verified: January 13, 2026

SYSTEM SENSOR M501M MINI MONITOR FIRE ALARM MODULE FREE SHIPPING !!!

~$39.99

The System Sensor M501M Mini Monitor Fire Alarm Module is a compact device used for monitoring and supervising fire alarm systems.

Key Specifications

  • Compatibility: Works with most conventional fire alarm control panels
  • Voltage: 12-24 VDC
  • Current: 20mA standby, 40mA alarm
  • Operating Temperature: 32°F to 120°F (0°C to 49°C)
  • Dimensions: 2.5" x 2.5" x 1.1"
  • Mounting: Surface mount with included screws
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