The 877MAX is a wireless keyless entry remote control operating at 315 MHz, designed as a substitute for the Chamberlain 940D-01 model. This remote enables convenient garage door operation from a distance, compatible with Chamberlain garage door openers that support 315 MHz frequency remotes. The device features a compact, ergonomic design for easy handling and reliable signal transmission. Installation is straightforward, making it an effective replacement for lost, damaged, or additional remote controls.

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