Simple to use, install the check valve into the fitting, turn the ON button on, connect the compressed air source and start turning the regulator knob open, watch the gauge and when you hear the valve start hissing make a note of the pressure reading and see if you are close to where you want to be.
Gauge is an easy to read 3.00" face with digital black numbers on a lighted face with readings from 0 to 300 in one pound increments. Gauge has a rubber boot around it to protect it in case it gets dropped or banged into something. Threads are 1/4" NPT so racer can install air chuck fitting of choice and if wanting to do a -8 check valve racer gets a steel -8 to -6 ORB adpt.
Includes battery, unit is new and never used. Was traded in by a racer that got out of racing.
Note: This is a used item. This item might have been taken in on a trade. RBS may have inspected this item and deemed re-usable. There is no warranty expressed or implied with this item.