This is a High Quality Remote Receiver which can be used on your existing automatic gate or garage motor. With its Rolling Code Security, you can be rest assured that your garage and/or gate will be secure. 

Features:

• 12-24V AC-DC Operation with Polarity Protection
• Rolling Code Technology (4 billion possible codes)
• Weather Proof Seal for Outdoor/Indoor Use
• Water Resistant IP23 Plastic Housing
• A-Grade Printed Circuit Board (25% Thicker reinforced circuit board)
• Superior performance antenna up to 180 metres (direct line of sight)
• Can store up to 400 remotes
• 2 Individual Channels
• Built in DC Motor Polarity Control