Marantec M16-831 Modular Receiver 122667. The Marantec M16-831 modular receiver plugs into the back of Synergy models. This receiver operates at 315 MHz which is standard for Synergy models. Compatible with Marantec models: Synergy 260, Synergy 270, Synergy 280, Synergy 360, Synergy 370, Synergy 380, Synergy LC and Synergy Solo.
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