Jost International's JSK37USK series air-release fifth wheel coupling system with sensor technology allows the driver to confirm that the fifth wheel is safely and properly coupled from inside the cab.

The JSK37USK’s sensor coupling system has dual sensors. The first sensor verifies that the kingpin is in the lock position and the second sensor indicates that the fifth wheel is locked and the release handle is secured.

The lock status can be shown either by a Jost-supplied dash display or communicated through the vehicle’s CAN bus.