The YSI ProDSS – digital sampling system (https://www.ysi.com/ProDSS) is a portable water quality multiparameter instrument for the measurement of several critical parameters – dissolved oxygen (optical), turbidity, pH, ORP, conductivity, specific conductance, salinity, TDS, resistivity, TSS, ammonium, ammonia, chloride, nitrate, depth (optional), temperature and GPS coordinates. One of the most impressive features of the ProDSS is its ruggedness. It is drop-rated, drop-tested to one meter on concrete, waterproof, features military spec cable connectors, and can be used in any lighting condition. This rugged design will provide you accurate data in any weather condition year-round. The ProDSS is a true field instrument. The ProDSS is not only an accurate, rugged, and reliable instrument, but it is also very easy to use. For starters, the ProDSS can easily be held in one hand. Combined with the one-cable design, the instrument is very convenient to use in the field. The ProDSS is designed to meet the needs of any water quality application, such as aquaculture, ground water, surface water, waste water, and coastal applications. Whether you’re spot sampling, conducting a low-flow sampling session, profiling, or measuring samples in a lab, the ProDSS will make collecting accurate data easy and efficient. We guarantee the accuracy of the measurement through rigorous specification testing during development and final testing every component of the system, including the handheld, cable, and sensors before they leave our factory. Request pricing (https://www.ysi.com/request-a-quote).