There are many gauges on offer. These include Analog, Digital and Pneumofathometer models. A gauge that is right for you is key to a safe dive. Your gauge must be calibrated at all times, especially when diving at high altitudes.
Analog gauges
Analog gauges are used to help divers gauge the depth of the sea. They work by having a needle pivot around a graduated scale to indicate the depth. These gauges can be worn on a wrist or integrated into the dive computer. While they are more reliable and accurate than digital, the analog ones can be worn on the wrist or integrated into the dive computer. An analog gauge offers the advantage that you won't run low on batteries.
The gauge's face is easy to read. It has numerical increments of depth ranging from 10'-40' and 20’ to 150'. The gauge has a pressure indicator. It displays pressure between 0 and 5000 psi. The red screen is reserved air while the green screen is 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. Temperature changes can affect the pressure difference between the gauge's water and the ambient. A mechanical gauge is safer than an electronic one. 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 basic types digital gauge diving computers. The hose method is a simple method, using a hose to connect the dive computer to the high-pressure port on the first stage. Wireless mode uses an electronic transmitter to communicate with the computer. This type of diving computer is also available in wrist-mounted and console models.
Pneumofathometers
Pneumofathometers can be used to measure the depth of air that is supplied to divers. These devices measure surface air pressure and indicate depth in meters or feet. These devices were used to be mounted on an air pump that provided breathing air for standard diving suits. The air supply was a free-flow system with no backpressure.
Gauge diving is for divers who wish to use a gauge. A gauge should be able to read between 130 and 160 percent the maximum operating pressure of the diving system. For systems that operate at 3,000psi or higher, a gauge with this range will suffice.
Submersible pressure gauges
A submersible pressure gauge (SPG) is a device that allows scuba divers to keep track of their air pressure. It also displays the current depth and the direction the diver is moving. An SPG is typically attached to the regulator by a high-pressure line. This arrangement makes it easy for the diver to locate the gauge easily and prevents it from becoming lost. The SPG indicates the remaining air pressure, in pounds per sq inch. It can be used for air supply monitoring while diving.
Scubapro makes an oil-filled analog depth gauge that measures up to 200 feet. It has a Bourdon tube design and is oil-filled. The console boot can also be attached to it with the C1 compass. Because it is easy to use, this gauge is ideal for beginners.
Compass
A compass that is easy-to-read is the best compass to use for gauge diving. It should have adequate markings to suit your needs and be large enough to be readable underwater. You will want a compass that has a bezel with indicator marks at every five degrees and compass headings in increments of 30 degrees.
Side view windows are important for gauge diving. They allow the diver to see where the compass points. This allows the diver see the direction that the compass is pointed even in complete darkness.