This is the H2O Mini PSI/BAR Button Gauge for Scuba Divers.
H2O Mini PSI/BAR Button Gauge for Scuba Divers
H2Odyssey Mini PSI/BAR Button Gauge screws directly into the high pressure port on the first stage of your regulator.
1/2″ and 7/16″ standard
Small and accurate review by LPV on 10/18/2018
Nice button gauge for a stage bottle….
You may also like…