The Keystone Heddolf M294-2K is a two-channel Multi-Code compatible garage door or gate receiver designed to add or replace remote control capability on new or existing operators. Operating on the Multi-Code 300 MHz format, it lets you control two independent devices or functions from matching Multi-Code style transmitters, making it a practical upgrade for residential or light commercial applications. Each channel activates a separate dry-contact relay output, allowing straightforward integration with most operator push-button terminals to open, close, or trigger an accessory.
Engineered for broad compatibility, the M294-2K works with standard 300 MHz Multi-Code transmitters (such as Linear/Multi-Code 3089 and 3060 series) that use 10-position DIP-switch coding. Power is typically supplied from 12–24 VAC or VDC, and installation is simple: connect the receiver to the operator’s control inputs and match the DIP switch code(s) on the receiver and transmitters for each channel. This Multi-Code receiver is not compatible with 310 MHz, rolling-code, Security+ or other proprietary formats. For best performance, mount the receiver with the antenna unobstructed, follow operator manufacturer wiring guidelines, and use only with UL 325 compliant operators and appropriate external entrapment protection devices.