H2000 PLUS Hydrogen Leak Detector Hydrogen Leak Detector H2000 PLUS is the new and improved model replacing the old H2000. H2000 PLUS is the ultimate tool for leak detection and leak locating using diluted hydrogen as tracer gas, finding leaks down to 5x10E-7 mbarl/s. New functions such as Auto Ranging and extended bi-directional communication will make your leak testing more efficient than ever before. The picture shows the benchtop model.