YSI Multiparameter water quality sensors and meters are the industry standard for most sampling, profiling and long term monitoring applications. YSI large range of multiparameter sensors, options and accessories ensure you have the right instrument for your specific application.

An example is the YSI 556. This is a versatile, multiparameter water quality sensor / meter and has the benefit of being handheld. Rugged and reliable, the YSI 556 MPS (Multi Probe System) combines the versatility of an easy-to-use, easy-to-read handheld unit with all the functionality of a multiparameter water sensor system. Featuring an IP-67, impact resistant case, the YSI 556 MPS simultaneously measures dissolved oxygen, pH, conductivity, temperature, and ORP.

YSI's Multiparameter Water Quality Sensors and Meters include:-

• Field replaceable sensors
• Easy to use screw on cap membranes
• Available with 4, 10 ,and 20m cable lengths
• Three-year warranty on the multiparameter water quality sensor
  (one-year on the probe modules)
• Stores over 49,000 data sets (time and date stamped) and calibration record
• Sensor is compatible with Ecowatch™ for Windows™ data analysis software
• Power - the YSI multiparameter sensor can be powered by alkaline or rechargeable batteries
• Optional Barometer, our multiparameter meter can be fitted with a barometer which can be user calibrated and displayed along with other data (can effect dissolved oxygen levels).
  

Uses for Multiparameter Water Quality Sensors and Meters

The YSI Multiparamter water quality meter can provide data on:-

• Dissolved Oxygen
• Temperature
• Conductivity
• Salinity
• Ph (acidity)
• Barometer