Models intended for recreational use come standard with either a rubber or plastic case. But, they don’t have a rubber or plastic “boot” to protect their exterior, so you’ll need to treat them with care. This stripped-down design is helpful if you are diving in full overhead environments like caves and shipwrecks, or in settings known for entanglement hazards, like kelp. SPG’s designed for tech divers typically feature solid brass and glass construction, so they are the smallest and easiest to stow options around. Which gauge style is best for you depends on what kind of diving you plan to do. And, even if you’re diving with a computer, you should always carry a backup SPG for redundancy, no matter how light you’re trying to travel. Keep in mind that smaller gauges are more challenging to read underwater. But, some models designed especially for dive travel are more compact. Typically, the more information your gauge displays, the larger it is. ![]() This consideration is especially important for divers who travel with their equipment. When it comes to SCUBA gear, size matters. These models are typically more expensive, but they also offer the most information possible underwater, making it easy to plan your dive and dive your plan. All-in-one options, also known as three gauge displays, add an analog compass to the mix. This extra dial shows how deep you are, and may also include an MDI needle to display your deepest point during each dive. This feature lets you know how much breathing air you have at all times during a dive. The most basic models only include an SPG to monitor tank pressure. ![]() SCUBA Gauges come with one, two, or three instruments included. THINGS TO CONSIDER WHEN BUYING A SCUBA GAUGE
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