Mini Gauge 0-23 PSI (0-1.5BAR)

This gauge is suitable for Duotight inline regulator. These mini gauges are accurate to about 10% of the range of the pressure gauge. So if you use the lowest range possible it will ensure the best possible accuracy.

Also these gauges are quite easy to install into a tank and depending on the thickness of the tank wall all you need to do to fit a Gauge like this is drill a hole in the tank about 8mm in diameter then insert the gauge and secure with screws.