The Keystone Heddolf GRC390-1KB is a single-button replacement transmitter designed to work with Genie openers that use Intellicode rolling-code technology at 390 MHz. Ideal as a spare or upgrade for residential garage doors, this aftermarket remote delivers secure, rolling-code operation that changes the access code with every press to help prevent code grabbing. It is intended for Genie Intellicode systems that operate exclusively on 390 MHz and programs directly to the opener’s receiver—no dip switches required.
Programming typically takes seconds: press the Learn/Program button on your Genie opener’s powerhead, then press the remote’s button to sync (refer to your opener’s manual for model-specific steps and indicators). This Heddolf Intellicode compatible remote is not intended for pre-Intellicode dip-switch models or newer Intellicode II/dual-frequency systems that rely on 315/390 MHz radios. For best results, confirm your opener’s frequency and Intellicode logo before purchase, keep transmitters out of reach of children, and ensure properly functioning safety sensors. Keywords: Genie Intellicode compatible remote, Heddolf GRC390-1KB, 390 MHz garage door remote, Keystone Heddolf replacement transmitter, residential garage door opener remote.
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