pvg-p | pressure or vacuum gauge
(Simple Pressure or Vacuum Tester for Can and Bottle)
“PVG-P” is the portable model for measuring pressure or vacuum into bottle.
Install the PVG-P under the finish neck and adjust the needle on the cap’s center, then screw the nut.
The needle will pierce the cap without leakage and check the pressure or vacuum value.
PVG-P on PET bottle