Make the most of your environmental monitoring.

The 6600 V2 sonde is the most comprehensive water quality monitoring equipment available with simultaneous measurement of conductivity (salinity), temperature, depth or level, pH/ORP.

Compact Sonde for Unattended Monitoring

The YSI 6920 V2 sonde is an economical logging system, ideal for long-term in situ monitoring and profiling. Two versions:

• 6920 V2-1 has one optical port, conductivity/temperature port, Rapid Pulse Dissolved Oxygen port, pH/ORP port, and 3 ISE ports
• 6920 V2-2 has 2 optical ports, conductivity/temperature port, pH port, and one ISE port.

Compact Sonde for Field Sampling

The YSI 6820 V2 is a cost-effective sonde for profiling and spot-checking in rivers, lakes, wetlands, wells, estuaries, and coastal waters. Two versions are available:

• 6820 V2-1 has one optical port, conductivity/temperature port, Rapid Pulse DO port, pH/ORP port, and 3 ISE ports
• 6820 V2-2 has 2 optical ports, conductivity/temperature port, pH port, and one ISE port.

Handheld Multiparameter Instrument

The YSI Professional Plus handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, ORP, pH/ORP combination, ammonium (ammonia), nitrate, chloride and temperature. Also a very powerful lab instrument for BODs, pH and ORP.

Measure Nutrient Data with Nitrate, Ammonium, and Chloride with Ion Selective Electrodes