The Automatic Gate Lock provides peace of mind and added security for your single or dual gate. Unlocks and locks automatically as the gate is activated. Easy DIY (Do It Yourself) installation for your Mighty Mule Automatic Gate Opener system. The Mighty Mule Automatic Gate Lock is compatible with all single and dual Mighty Mule or GTO/Pro Automatic Gate Swing Openers. Column applications may require Column Gate Lock Receiver (433IH). Backed by a 12 month Mighty Mule Warranty and life time technical support.