Compatibility:

Suits gate openers fitted with Merlin M-500, M-501 or M-502 receiver cards
Suits Merlin Openers (1994-2001) unless they are fitted with a code hopping receiver
Replaces remote controls with Red or Blue Round Buttons, M800 and M2100

Specifications:

Two channels
Merlin Remote Control units can fit existing systems
Typical operating range 20m – 60m, depending on the environment
Open field range with a properly tuned and positioned antenna can exceed 100m
Transmitter: FM Transmission (FSK) Transmitter Frequency: 40.685MHz
Coding 12 bit binary
12 dip switches
Power supply: 12 volt battery
Size: 10.5cm height x 5.5cm width