How to choose a tester

The radon detector uses a patented diffused photoelectrode tube to measure helium concentration. The instrument operates on AC power and can also be powered by a backup battery. Universal data interface to download measurement data reports to your computer. Th

Vacuum pump oil filtration and replacement

During the use of vacuum pump oil, some of the oil deteriorates due to oxidation, emulsification, and impurities from the outside. When the metamorphic components and impurities reach a certain degree, the color of the oil changes, and the viscosity and acid v