|YSI 6920 V2 Sonde
The YSI Model 6920 V2 Sonde w/650 Display (pH, DO, Cond, Temp, ORP, Salinity, Turbidity) is an economical logging system, ideal for long-term in situ monitoring and profiling. 6920 V2-2 has 2 optical ports, conductivity/temperature port, pH port, and one ISE port. A pressure sensor is an option on both versions. Available optical sensors include ROX optical dissolved oxygen, blue-green algae, chlorophyll, turbidity, or rhodamine. The 6920 V2 will log all parameters at programmable intervals and store up to 150,000 data sets.