The 3028-50 comes in a plastic housing that is easy to work with. It will operate two gates, one gate and an obstacle sensor, or channel one can open the gate and channel two can close the gate.
Features
Dual frequency - Multi-Code or Stanley compatible; jumper selectable
12-24 Volts AC or DC
Auto voltage sensing - no jumpers to set
Two relays, their relay contact(s) are rated at 30 VAC/DC up to 5 Amps.
Will hold 512 remotes using the dip switch settings
Supplied with whip antenna, three feet of coaxial cable and bulkhead connector
Power: 12 - 30 VAC or 10.5 - 30 VDC; 16 mA nominal, 50 mA maximum while relay is triggered
Frequency: 300 MHz and 310 MHz
Dimensions: 3.625 x 5.25 x 1.5 inches
compatible by Multicode