The M500DM module is capable of monitoring two separate Class B circuits simultaneously, making it ideal for waterflow tamper switch and flow switch monitoring.
M501 mini monitor modules provide a 2-wire initiating circuit for normally open contact fire alarm and security devices.
MDF-300 dual monitor modules are intended for use with addressable, 2-wire systems. They provide two independent 2-wire initiating device circuits (IDC) at two separate consecutive addresses.
The M500M Monitor Modules from System Sensor provide a two-wire, or fault-tolerant, initiating circuit for monitoring and operating contact fire alarm and supervisory devices or security devices.
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