LiftMaster Traction Ring (Hall Effect Wheel) | LIF-K80-19011 sw490 relay Provides the option to add

Provides the option to add a push-button station or connection to an alarm system

100% solid state

LiftMaster Arm Hub | LIF-K07-8007

This transmitter is compatible with all Linear (GTO) gate openers

LiftMaster Traction Ring (Hall Effect Wheel) | LIF-K80-19011 sw490 relay Provides the option to addLiftMaster Traction Ring (Hall Effect Wheel) LIF K80 19011 This is a replacement Hall Effect Wheel Traction Ring. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster replacement part. Also known as LiftMaster 80 19011 Compatibility This part is compatible with LiftMaster HS670GL Slide Gate Operator.