Extech TB400 Portable Turbidity Meter Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye (similar to smoke in air) and the measurement of turbidity is a key test of water quality. In drinking water, the higher the turbidity level, the higher the risk that people may develop gastrointestinal diseases. This is especially problematic for immunocompromised people, because contaminants like viruses or bacteria can become attached to the suspended solids. Extech TB400 Portable Turbidity Meter Features: Microprocessor-based circuitry assures high accuracy and repeatable readings Requires only a 10mL sample size 2-point calibration Splash-proof front panel Battery operated for field and on-site testing Data Hold and Min/Max record/recall Auto power off Complete with 0 NTU standard solution test bottle, 100 NTU standard solution test bottle, cleaning solution (distilled water), (2) test bottles and covers, cleaning cloth, six AAA batteries, and hard carrying case Extech TB400 Portable Turbidity Meter Specifications: General Specifications Range (NTU) 0.00 to 50.00 NTU, 50 to 1000 NTU (Nephelometric Turbidity Unit) Resolution 0.01 NTU Accuracy ±5% FS or ±0.5 NTU, whichever is greater Light source LED, 850nm Standard Designed to meet ISO 7027 Response Time <10 seconds Dimensions 155 x 76 x 62mm Weight 320g
