Camlab
The portable TB200 white-light turbidity meter (photo) is designed to quickly provide reliable onsite testing of water samples. The unit uses a white light source and a 90-deg infrared detection technique to meet specifications of EPA Standard 180.1. The instrument is capable of performing 600 tests without a battery charge. Calibration of the turbidity meter is simple, and the device comes with four turbidity standards. Autoranging is a feature that allows the instrument to automatically select the correct turbidity range for a given sample. — Camlab Ltd., Cambridge, U.K.