Since 2006, the YSI Professional Plus Water Quality Meter has set the industry standard for water quality sampling. YSI has recently introduced the YSI ProQuarto, a low-cost water quality sampling meter which will be replacing the YSI Pro Plus. As of the 31st of March 2021, the Pro Plus has been discontinued as some of its components have become obsolete or too expensive to source. To keep the cost down and to provide trusted data and reliable service YSI has managed to make the ProQuatro less expensive than its predecessor! These handheld sampling instruments can be used to monitor coastal water, surface water, aquaculture and for low flow sampling.
A superior water quality monitoring and sampling equipment
The ProQuatro handheld multiparameter measures a variety of combinations of dissolved oxygen, conductivity, specific conductance, salinity and more! It is also a powerful lab instrument for BOD’s Ph and ORP. Some of its features are:
Quatro Cable – As the name suggests, the ProQuatro is designed with the Quatro, a four-port cable with a conductivity and temperature sensor. It can measure temperature, any two ISEs among Phs, ORP, ammonium, chloride, or nitrate. This makes it the most versatile handheld in the Pro Series.
Rugged for any terrain – It has a durable rubber moulding waterproof case that protects the instrument in any weather condition. It is tested in-house for a 1-meter drop test from all angles to ensure field durability. With a three-year warranty and a two-year cable warranty, the ProQuatro truly meets the demands of fieldwork.
Accessories can be interchanges for Pro Plus vs Pro Quatro - YSI has made the replacement seamless as the full suite of Pro Series accessories will also work with the ProQuatro.
Streamlined and Improved User Experience – It provides a graphic display with an intuitive interface, re-cal prompts, user-defined fields and Data IDs for data logging.
The difference between the Pro Plus and ProQuarto
The ProQuarto is designed to be tough, smart and versatile. Here is a list of features that differentiates the ProPlus from the ProQuarto :
New USB port for on the go transfers to a flash drive
Improved ID that replaces Site folder for easy data management
Improved removal of the rarely used “Help” feature so it frees up more space on the handheld device
YSI has taken everything users love about the ProPlus and added a few more features to make it durable, versatile and have better data management. As a company that is committed to serving customers the best way they can, YSI will be supporting any Pro Plus instruments for 5 years after the date of purchase, including warranty and repairs.
