Don't you have a problem with the precision of the vacuum gauge (Variation of sensitivity, error, etc.) and short life (gauge head becomes dirty and it is hard to discharge, etc)in measurement at high vacuum? To respond to such requests, ULVAC has developed an ionization vacuum gauge with a spec of long-life at severe environment and a measurable type with high precision. This world's irst metal type triode ionization vacuum gauge is greatly reduce the running cost and help further improving the yield of various processes.