The DIR Zone PVD 230 Bar Diving Pressure Gauge is the made out of high quality brass, and is most suitable for back gas and also stage/decompression cylinders. It is now coated with PVD (Physical Vapour Deposition) finish, that has a tougher resistance to scratches and corrosion.

The diameter of this SPG is 52 mm, and reads from 0-300 bars. This SPG can handle cylinders up to 230 bars. The readings are spread out neatly so that the diver can have a clear view at any depth. It comes with a swivel spool with Viton O-Rings

The back ground and the needle on the dial is glow in the dark. Technical divers will like the feature of the burst disk at the back, in case of a failure, it does not blow to the face unlike plastic gauges.