There are various types of gauges available on the market. There are several types of gauges, including analog, digital and pneumofathometer models. Choosing a gauge that fits your needs is essential for ensuring a safe dive. It is important to calibrate your gauge at all altitudes for safety decompression.
Analog gauges
Divers can use analog gauges to gauge dive. They are able to measure the depth of the water. You can use them to indicate the depth by turning a needle around a graduated scale. These gauges may be worn on the wrist, or integrated into the dive computers. The analog ones may be more reliable than digital gauges, but they are not completely accurate. An advantage of an analog gauge over digital is the fact that you never run out.
The face of the gauge is designed to be easy to read. It offers numerical increments in depth of 10'-40', 20'-40', and 20'-150'. It also has a pressure gauge. It can display pressure from 0 - 5000 psi. A red screen means reserve air, and a green screen means main air.
Digital models
Divers desire to be able dive deeper and for longer periods of time, but a digital gauge doesn't allow them to do that. The difference in pressure between the gauge and the ambient water can be affected by temperature changes. A mechanical gauge is far safer than an electrical gadget. A mechanical gauge is safer than an electronic gadget. It can track your dive time and depth as well as calculate your Nitrogen retention. This will help to prevent decompression illnesses.
There are two types of digital gauge dive computers. The hose method uses a hose to link the computer to the first stage's high-pressure port. The wireless mode, on the other hand, uses an electronic transmitter attached to the first stage to communicate with the dive computer. This type can be used with console and wrist-mounted models.
Pneumofathometers
Pneumofathometers can be used to measure the depth of air that is supplied to divers. These devices measure the air pressure near the surface and then display the depth in feet (or metres). These devices were originally mounted on a hand-cranked pump that supplied breathing oxygen to the standard diving suit. The air supply was completely free-flowing, and there was no back-pressure.
A gauge should have a range between 130 and 160 percent of the maximum operating pressure for gauge diving. This range is sufficient for systems operating at 3,000 psi and more.
Submersible pressure gauges
A submersible pressure gage (SPG), which allows scuba divers keep track of their pressure, is a device used by divers. It displays the current depth as well as the direction that the diver is moving. The SPG connects to the regulator using a high pressure line. This arrangement allows the diver to minimize confusion about where the gauge is located and keeps it from getting lost. A SPG measures the remaining air pressure per square inch. It is used to monitor your air supply while diving.
Scubapro offers an oil-filled analog depth gage with a Bourdon tub design. It can measure to depths of up to 200 feet. It also comes with a C1 compass, which attaches to the console boot for more versatility. Because it is easy to use, this gauge is ideal for beginners.
Compass
The best compass for gauge diving is the one that is easy to read. It should be large enough for you to read underwater and with the correct markings. A compass should have a bezel that contains compass headings organized in 30 degree increments, and indicator marks for every five degrees.
A side view window is an important feature of a compass that allows gauge diving. It lets the diver see the direction in which the compass point. This allows the diver, even in total darkness, to follow the compass's course.