The gauge case is made from nickel plated brass
The dial window is made of highly shock resistant material (anti-splinter polycarbonate)
A specially designed housing protects the gauge and HP hose fitting from accidental damage
A large loop area designed into the housing allows for easy attachment.
There is an over-pressure capsule fitted in the back of the module to prevent the screen from exploding in the unlikely event of the internal mechanism failing.
The gauges are made with O2 compatible materials but ensure that they are O2 cleaned before use with high percentage oxygen