Submersible Pressure Gauge or SPG

Your SPG is the essential air consumption monitor. Checking your Submersible Pressure Gauge regularly allows you to gauge your average air consumption during a dive so you can monitor temperance. In this way you can log how much air you use on the dive and how much to consciously consume in order to practically maximize your consumption on the next.

Standard Submersible Pressure Gauges are hand-held, analogue-type format. The feed comes through a high pressure hose connected to the first stage. These are also available in a plastic-cased console accompanied by a built-in dive computer, compass and depth gauge. Decompression cylinders often display smaller button-type gauges however they can become predictably hard to read.

Air integrated dive computers embody gauge characteristics have their advantages and disadvantages. Specially programmed to communicate via radio waves divers run the risk of failure, which results in an inability to monitor the essential pressure fluctuations.

Most recreational divers use 32 inch high-pressure hoses, long enough to clip away and eliminate drag. Typical lengths are normally 24 inches, but this is too short when used in conjunction with a single cylinder configuration. Technical divers (in this case cave and wreck) prefer to remove the boot to ensure streamlining.

Submersible Pressure Gauges bear either an impact and scratch- resistant 1.5 inch polycarbonate face (compact) or a standard 2.0 inch tempered glass face.

High tech chrome-plated marine brass fitted Submersible Pressure Gauges are available with simplex or duplex shock-resistant Bourdon-tube mechanisms for maximum accuracy. Other models offer dials that glow in low viz situations, integrated temperature gauges, Nitrox compatible (to 50%) options. An accurate pressure gauge will save your life. Make sure the one you use is fitting to your dive's demands.