The PHD-4 is a Sniffer type portable compact helium leak detector which includes a battery for autonomous use in the field and uses helium as a tracer gas. It allows detection of very small leaks, (5X10-7 Pa-m3/s) in objects where a slight helium pressure has been introduced. The principle of operation of the PHD-4 is based on a patented technology called Selective Ion Pump Detection (SIPD) which is far superior and more sensitive than other types of Helium Leak Detectors like thermal conductivity cells. See detail information for kit components.
Standard delivery is four weeks.