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System Sensor Europe, like the majority of manufacturers, is experiencing longer product lead times due to component shortages. As we actively work to improve this situation, your satisfaction remains our main priority. View our current estimated lead times.

- M501MEA Addressable Input Module

The M501MEA is a mini-addressable input module. It will interface with contact devices such as security contacts, waterflow switches and call points. It is capable of being connected in Class B wiring configurations.

The M501MEA provides a two-wire initiating circuit for normally open contact fire alarm and security devices. In addition to transmitting the supervised state of the monitored device (normal, open, or short), the full analogue supervision measurement is sent back to the panel. The compact size allows it to fit inside devices or junction boxes behind devices. Its size and light weight allows it to be installed without the need to be rigidly mounted. Enabling the Advanced Protocol, alarms or troubles are determined in a reduced time.


  • Compact size
  • Uses Advanced protocol (up to 159 addresses)
  • Rotary address switches
  • Low standby current
  • Complies with EN54-18
  • CPD
  • 0°C-49°C operating temperature range
  • 10%-93% operating humidity range