One Channel Remote Gate Opener,four channels remote gate opener,two channels remote gate opener. GIANT ... or Superregeneration receiveOutput ChannelCustomized by customer request.There are 1 channel,2 channels,3 channels or 4 channels output,etcOutput Parameter ... can load below 7A electrical current; Dry Contact Output:Each Channel has two connective connecting lines. Product nameGate openerModel No.JJ ...