LiftMaster E-Box Assembly (Q403) | LIF-K74-50278 SEA Orion Slide Gate Opener It's a single State-of-the-Art universal

It's a single State-of-the-Art universal electronics control board that eliminates the need for mechanical limit switches

A new feature interrupts the timing cycle and reset the timer

The Internet Gateway adds smartphone control to any myQ-enabled products

but can be configured to Normally Closed operation for use with maglocks or fail-safe strikes

LiftMaster E-Box Assembly (Q403) | LIF-K74-50278 SEA Orion Slide Gate Opener It's a single State-of-the-Art universalLiftMaster E Box Assembly (Q403) LIF K74 50278 This is a replacement Electrical Box Assembly. For use with various LiftMaster Swing and Slide Gate Operators. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster replacement part. Also known as LiftMaster Q402 LiftMaster Q403