LiftMaster Hall Effect Sensor Kit | LIF-K74-18381 elite power hinge 2 LiftMaster K71-B120 is a complete

LiftMaster K71-B120 is a complete Internal Brake with Solenoid Replacement Kit

Self contained access keypad ideal for airports

LiftMaster Q104

Inherent reversing sensor detects obstructions and reverses the gate when closing

8 on/off programs

LiftMaster Hall Effect Sensor Kit | LIF-K74-18381 elite power hinge 2 LiftMaster K71-B120 is a completeLiftMaster Hall Effect Sensor Kit LIF K74 18381 This is a replacement Hall Effect Sensor Kit. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster replacement part. Also known as LiftMaster SN75G0552 LiftMaster G75G0552 Compatibility This part is compatible with LiftMaster SW420GL Swing Gate Operator.