2X For Hormann Garage Door Remote 868Mhz HSM4 Blue Button Key Fob Transmitter. For Hormann Garage Door Remote KEY FOB 868Mhz HSM4 Blue Button Transmitter. Installation: wireless Learning frequency range: 287MHz,300MHz ,310MHz ,315MHz, 315.5MHz ,330MHz, 360MHz ,390MHz, 410MHz, 433.42MHz,433.92MHz, 434.42MHz,868.35MHz.
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