QHE+

Leak detectors for vacuum pumps, pressure gauges, pressure relief valves for use in the following, namely, gas and oil pipelines, igniters for rocket engines, natural gas, coal and nuclear power generating plants, fuel canisters for space satellites, air conditioner exchangers, air conditioner compressors, fuse housings for explosive devices, liquid measuring plastic floats, blood filters, automotive transmissions, automotive aluminum wheels, automotive battery lids, heat exchanger cores, plasma displays, laser welded pressure sensors for automotive industry, jet engines, computer circuit housings, circuit boards, and photo cells