The Linear Delta-3 DR-4 DNR000023A 4-channel receiver operates on a 310MHz frequency, and it's available in 12-volt and 24-volt models. It can be activated by any other Delta-3-format transmitter, so you may not need to upgrade your entire system if that's what you're already using. With 64 possible codes set by dip switches, this receiver is an excellent choice for maintaining security on gates, garages and other access control systems.
Dimensions: 4.9 inches wide, 4.2 tall, 1.3 inches thick
Mounting bracket and wire lead antenna included
Activates up to four devices
Operates on 310 MHz frequency and works with any Delta-3-format transmitters