[Wide Compatibility] Experience wide compatibility with the M12 remote control transmitter, suitable for opening Lockmaster/Topens/Casar sliding gate 433.92 MHz non-encrypted gate from distances of up to 65 feet. Small & easy to take wherever you are. Our remote control is constructed with a lightweight and durable metal frame, ensuring years of corrosion-proof use without compromising on strength. [Easy to Program] for Lockmaster/Topens/Casar swing and sliding gate openers can be operated by the M12 remote. Fast pairing makes it simple to add the remote to your gate opener system using the programming button on the control board, open and close the gate with one simple press. The M12 remote will operate the third-party gate opener whose control board accepts "Normally Open Dry Contact" signal for push button. [Flexible Operation Mode] If there is no signal interruption, 1 M12 remote can operate countless gate openers simultaneously within the control range. Every time you press the remote control will make the gate operate between open-stop-close-stop-open. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:As Shown Material:Plastic Package Contents: 3 * Remote Control Transmitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.