Usage Tips:Multi-purpose: this air pressure gauge is suitable for inflatable boats, inflatable boats, SUP boards with certain valves. Standard measuring range: when you use it for work, there is a measuring range of 0-0.35 bar or 0-5.08 PSI. Valve adapter: this air pressure gauge can also be used as a valve adapter as it is a special connection structure. Feature: this air pressure gauge can be used on inflatable boats with soft ground or river rafts. Easy to install: this air pressure gauge is easy to install and use. You can install it without worry. Dinghy manometer. Pneumatic gauge Suitable for inflatable boats, rubber boats, SUP boards with the respective valve. It can also be used as a valve adapter as it is a special connection structure. This air pressure gauge can be used on soft dinghies or river rafts. Easy installation and operation. The measurement range is between 0 and 0.35 bar or 0 to 5.08 PSI. Specifications: Condition: High quality. Material: Nylon. Colour: black. Total length: Approx. 95 mm / 3.7 inches. Barometer diameter: Approx. 55 mm / 2.1 inches. Top tube width: Approx. 20 mm / 0.78 inches. Bottom tube width: Approx. 16 mm / 0.6 inches. Measuring range: 0-5.08PSI or 0-0.35BAR Approx. weight: 70 g. Manometer inflatable boat. Manometer inflatable boat suitable for inflatable boats, inflatable boats, SUP board with the specific valve. Manometer inflatable boat measuring range isThe measuring range is 0-0.35 bar or 0-5.08 PSI. Easy installation and operation. This air pressure gauge can be used on inflatable boats or river flies with soft ground. It can also be used as a valve adapter as it is a special connection structure.