The MGD-2002 hand held leak detector is the ideal instrument for leak testing in pressurized cables, storage tanks or any closed system that can be pressurized with a tracer gas. With detection capabilities down to 25 PPM the MGD can detect even the smallest leaks in buried telephone cables. The MGD 2002 is a portable leak detector that is easy to transport to any job location that requires leak detection. The tracer gases the instrument can detect include helium and hydrogen.