RION is a Japanese manufucturer of particle counters, and we instroduce state-of-the-art particle counters for monitoring the air and fluid cleanliness in the clean room. The most critical cleanliness is required for the TFT and Semiconductor industry and RION particle counters surely meet your demand. The particle counters can be connected to the computer with easy-to-use software for analysis of the data and remote control of the counters.