Rolling Code receiver 

This sophisticated one channel receiver, Model 81CRV5, has been specially designed to operate any control panel of gates or garage doors.

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Selecting operation voltage 12V or 24V AC/DC

The receiver is made to suit 12- 24V Ac / Dc voltage. You can select the operation voltage by the Voltage Selector Jumper in the receiver. See the location of this Jumper in the receiver’s picture below.