Worried about over-inflating your kayak or paddle board? Check out TRiB Outdoor Tech's new airCap solar-powered pressure gauge for Leafield C7 and D7 valves. The airCap reads from 0.20 to 20 PSI, making it ideal for inflatable kayaks, canoes, paddle boards and RIBS. Rugged, waterproof and works in low-light levels.