Transparent Turbidity Tube, simple apparatus is used to determine the transparency of water in lakes, streams, oceans as well as other bodies of water, Contains: 60cm transparent turbidity tube, rubber stopper with Secchi disc, 20cm silicon tube, Hoffman's clip, steel
Ratiometric Turbidity Meter, Infrared (LED) Lamp, Material: Plastic, 2020T version with tungsten bulb is best suited for low level drinking water applications
Ratiometric Turbidity Meter, Infrared (LED) Lamp, Material: Plastic, 2020i version best suited for natural waters, samples of higher turbidity and samples with some color