[{"id":300293554241,"handle":"fire-alarm-power-and-relays","title":"Fire Alarm Power and Relays","updated_at":"2026-06-11T14:48:56-05:00","body_html":"\u003cp\u003eShop our selection of fire alarm power supplies and relay modules from leading manufacturers including Potter, Fire-Lite, Silent Knight, Kidde, and Altronix. Our inventory includes power supply\/charger units for fire alarm control panels, linear power supplies, addressable relay bases for detector mounting, relay option module enclosures, single and dual DPDT relays in enclosures, and detector mounting bases with integrated relays. These essential components provide backup power, battery charging, and control relay functions for fire alarm systems, HVAC shutdown, door release, elevator recall, and other auxiliary control applications. Available in various voltage and current ratings to meet your specific fire alarm system requirements.\u003c\/p\u003e","published_at":"2026-01-08T12:42:06-06:00","sort_order":"best-selling","template_suffix":"abc","disjunctive":true,"rules":[{"column":"tag","relation":"equals","condition":"Fire \u003e Power \u0026 Relays"}],"published_scope":"global"},{"id":301937950785,"handle":"quick-order","title":"Quick Order","updated_at":"2026-06-11T18:31:59-05:00","body_html":null,"published_at":"2026-02-18T13:35:25-06:00","sort_order":"best-selling","template_suffix":"quick","disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"web"}]
The MRI-4041 Mini Dual Input Monitor Module is an intelligent addressable device designed to be used with a compatible fire alarm control unit, providing high rates of information exchange and fast and secure responses. The MRI-4041 Mini Dual Input Monitor Module provides 2-independent contact monitoring circuits only utilizing one 1-address on the SLC loop. The module supports 1 Class A or 2 Class B inputs. When configured for Class A operation, the module provides an internal EOL resistor. When configured for Class B operation, the module can monitor 2-independent input circuits while using only 1-module address. The module has a panel-controlled LED indicator. The LED flashes during normal operation and stays ON steadily when the device is in alarm condition. The address of each module is set using the MIX-4090 programming tool. For setting the address on this device, disconnect it from the loop, or ensure that the loop to which is connected is both disconnected from the panel and shorted across the SCL+ and SLC- inputs at the device. Failing to take either of these steps may change the address programming of previously configured sensors on the loop.
Main Features
Any combination of MRI-4000 series devices up to 240 can be connected on a single SLC
Fits in a single gang junction box
Indicating LED provides module status
Fast, reliable contact monitoring
Will automatically set inputs to single Class A or dual Class B according to the configuration sent by the fire alarm panel
No EOL resistor required when input is in Class A operation
Monitors 2-independent circuits in Class B using 1-module address
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