Liftmaster standard 2-wire edge will cause a door to reverse when it meets an obstruction while closing if the operator has type B2, C2, S2, T, T1 or TS control wiring.
A sensing edge should be used on every door for the protection of pedestrians and vehicles. Always use some type of safety edge when operating your garage door with a remote control transmitter.
Works on all commercial garage door openers with auto reverse capabilities. Works with all Liftmaster J series, T series, H Series APT series and many others.
-Pneumatic edge kit with exterior air switch. -Includes 2-wire coil cord and 14 feet of air hose. -Does not include bell 2 wire to connect coil cord to opener.*Also see our CPS-L Photo eyes for added protection to your Logic 2 or Logic 3 Liftmaster garage door opener.