Low-Pressure Verifier GaugeEasily and accurately read the exact pressure of your SUP, boat, or other inflatable. Connects to standard high-pressure HR valves. For low pressure up to 9 PSI.  Having your inflatables properly inflated to the correct pressure makes them comfortable to be on, enables them to perform to their proper abilities and prevents damage from over or under inflation. Being able to accurately check the pressure of your tubes, mattresses, lounges towable etc. will allow you to use them for seasons to come. The Solstice Low Pressure Verifier Gauge will accurately read the exact pressure within your fabric reinforced inflatable boat, dingy or kayak etc.