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Contact Closure to Multi-Point Relay

Point to Multi-Point Relay at a Glance...

Sender Board Controls the Receiver Boards
- Dry Contact Inputs on the Sender Board
- Relay Outputs on the Receiver Boards
- Extend Contact Closure to Multiple Locations
- Sold as a Married Set
Onboard 900MHz Wireless Interface
- Reliable 900 MHz Radios Installed
- Line of Sight Operation
- 2-Mile Range
- Multiple Pairs will not Interfere with Each Other
- For Use in North America (US, Canada, Mexico)
Works Together Right Out of the Box!
- No Programming, Software, or PC Setup Required
- Simply Connect and Power On

Multi-Point Control, Simplified

MirM is available in 1, 2, 4, or 8-channel models.
Each system includes a dedicated Sender Board with dry contact inputs and multiple Receiver Boards with matching relay outputs.

Inputs on the Sender Board control the relays on the Receiver Boards - providing reliable, one-way control to multiple remote locations.

Need to trigger multiple remote relays from one switch? MirM was built for exactly that!

Contact Closure to Multi-Point Relay

MirM controllers let you send a dry contact (no voltage) signal from one location to multiple remote relay boards at the same time. Each system uses a Sender Board with contact closure inputs and two or more Receiver Boards with matching relay outputs.

When an input on the Sender Board is activated, the corresponding relays on all paired Receiver Boards respond simultaneously.

This makes MirM ideal for applications where the same action needs to occur in multiple locations using a wireless connection.

💡 Relay Pros ProTip:

Use one input to control multiple remote relays - perfect for coordinated lighting, alarms, or system shutdowns.

How It Works

The relays on each Receiver Board provide no voltage and can be used to switch power to a device or as a dry contact closure output.

Relays remain energized as long as the input stays closed. A momentary push button can briefly activate the relay, while a maintained switch can hold the relay on until opened.

900 MHz Communications

Each Sender Board and Receiver Board is equipped with a Wireless 900HP module for reliable long-range communication.

These systems offer up to 2 miles (3.2 km) line-of-sight range, making MirM a strong solution for farms, facilities, gates, pumps, alarms, and multi-building control.

Choosing the Right Contact Closure Relay

How many inputs/relays do you need? Below, you'll find a list of available MirM boards, categorized by the number of inputs on the Sender Board and relays on the Receiver Boards. Simply select the number of relays you require, and click the corresponding link. You'll then be directed to a page where you can choose the amperage of the relay installed on the board.