When security is a priority, you need a Linear Delta DR-2 DNR00018 2-channel receiver for commercial gates and door access control. This two-channel, wireless radio control is designed for automatic systems, and it can be activated by any transmitter operating in the Delta-3 format. It operates at a 310MHz frequency and features 128 possible codes that you can set with dip switches.
This 5.5-inch-wide, 4-inch-tall, 1.25-inch-thick Linear Delta DR-2 DNR00018 2-channel receiver comes in a 12-volt and a 24-volt model. It comes with a wire lead antenna and a mounting bracket, so it's ready to go right out of the box. The DNR00018 can activate two devices, which makes it easy to control a gate and a garage door or any similar variation.