The LA400 has a powerful 24VDC motor, which provides exceptional starting torque and features soft start/stop operation. This promotes longer gate and operator life, as well as dependable performance. The LA400 is capable of operating gates up to 16 feet long and weighing up to 550 pounds.
An on-board radio receiver is included with the LA400. Exclusive from Chamberlain®, this provides a single remote control solution for gates and additional access points.
•On-board radio receiver
•DC operator system
•Inherent obstruction sensing
•External obstruction sensing
•Timer to close
•Electronic limit system
•Keyed manual disconnect
QUESTION: What is the radio frequency that the receiver operates on for this LA400 ? by Thomas D 10/22/2016
QUESTION: is the an internet module that can be added to this gate opener? by Brad C 7/15/2015
ANSWER: I don't know about the Lift Master branded one, but there are terminals inside the control box that will cycle the gate open and closed each time a switch or relay is momentarily closed.<br /><br />I use mydooropener dot com on my iPhone but it's a hobby project that involves buying a Arduino control board and a relay, but you can also accomplish the same thing with Belkin WeMo "maker" device. There's probably others as well.<br /><br />Adding a magnetic open/close sensor is really helpful too if you can't always see your gate. by David M a