Merlin Remote Control E138M
Wireless Wall Button (E138M)
Wireless wall button
Frequency: 433.30 / 433.92 / 434.54Mhz AM
Encryption: Security+ 2.0
A popular option for homes with internal access to the garage. The remote wall button can be placed in a suitable location in your home or garage. There is no wiring and it can open up to two garage doors.