Model: RC220-1K Name: Classic Rolling Code Transmitter Description Keystone remote controls are compatible and interchangeable with most popular brands and frequencies of transmitters and receivers including Chamberlain, Sears, Overhead door, Linear, All Star, Pulsar and Stanley.

Features Size : 3 1/2" x 2 1/4" x 3/4" Case: Black ABS plastic with metal visor clip. Indicator : LED. Frequency : 300 MHz Power : 9V battery All have saw resonator for perfect frequency settings

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