Equipment Remote Module RedLINK™ Technology Save installation time by connecting a condensing unit or boiler to control devices — without wires. Honeywell's Equipment Remote Module (ERM) eliminates wiring needs, so there are fewer holes to drill and wires to run. Just faster, easier installation that gives you more profit per job. See how freedom from wires can help your business grow. Make the Honeywell ERM your go-to choice for fast, easy equipment installation.