The Total Suspended Solids (TSS) meter dual-beam infrared scattered light photometer detecting system of the tabletop TSS meter. It contributes to its increased stability. Self-diagnosis feature built in to guarantee data accuracy. An optional cleaning brush can be used to automate the cleansing process and lower sensor maintenance.Measurement range=20000mg; Measurement accuracy=± 2 % F.S; Pressure range=≤ 0.4 Mpa; Flow rate=≤ 2.5 m/s, 8.2 ft./s; Calibration=sample,slope-calibration;for more visit Labtron.us