I had high hopes for this Milton gauge. I bought one for me and one for my brother. BOTH gauges leaked on first use. The pressure relief valve seems to be to blame. Both sensors will be returned! Milton is a good name that seems to have been sold to inferior "foreign components", probably cheap Chinese stuff, and that's why BOTH leaked! We are definitely not the only ones with this problem! I'm sending it back and buying a Jayco Gauge instead.