Antenna bracket

Liftmaster 811LM 12 Dip Switch Remote Transmitter Commercial Gate Operator 850LM Ideal for applications such as gated communities or commercial applications requiring a large number of remotes for a common entrance Dual 12-position DIP programming offers up to 4 096 codes Narrow band transmission on 3 simultaneous frequencies (310 315 390 MHz) Compatible only with Security+ 2.0® commercial receivers and operators Extreme range encrypted DIP-style remote control Features: Activates one Security+ 2.0 radio receiver or commercial opener Test/operate LED Visor clip included One-Year manufactures warranty Specifications: Power: 3 volt lithium battery CR2032 included Frequency: Tri-frequency 310 390 and 315MHz Dimensions: 3.125 x 1.75 x 0.625 inches (excluding visor clip)