Purge monitoring that's simple and effective. Easy to transport and use Can be used with all inert purging gases for a wider range of applications Saves time and money Simple, single-button operation High accuracy and reliability Can be used for continuous monitoring or spot checks Competitively priced This compact, handheld device is battery-powered and easy to use, making it the perfect solution for any welding application. The BPM offers high accuracy and reliability, while still being competitively priced.