M501M System Sensor Mini Monitor Module The M501M System Sensor monitor module can be installed in a single gang junction box directly behind the monitored unit. Its small size and lightweight allow it to be installed without rigid mounting.
The M501M is intended for use in intelligent, two-wire systems where the individual address of each module is selected using rotary decade switches.
It provides a two-wire initiating circuit for normally open contact fire alarm and security devices.
Our Client Tier System is designed to reward you with better discounts as your business grows.
Every new account begins at our Base Tier, ensuring you receive value from your very first purchase.
As your yearly volume increases, so does your opportunity to save.
Streamline and Empower Your Business Operations
Our new B2B (Company) Accounts offer a comprehensive solution for companies seeking to streamline their procurement process and empower their teams.
With a B2B account on our website, your company can link multiple employee accounts under one central business panel. This integration provides a unified view of all transactions, invoices, and benefits, ensuring efficient management and coordination across your organization.