YSI ProQuatro Handheld Multi-Parameter Instrument
Providing the versatility you expect from YSI, the ProQuatro accommodates your choice of cable and probe combinations. In addition, a built-in USB port allows you to upload data directly to a flash drive for on-the-go access in the field or the lab. To begin monitoring, simply select the cable length and appropriate probe (or probes) you need, then determine which measurements you want to be displayed. Choose from these probes: dissolved oxygen (galvanic or polarographic probe), pH, ORP, pH/ORP combination, ammonium, chloride, and nitrate. Single probe and dual probe cables are available. All cables provide temperature measurements without the need for a dedicated temperature probe, and conductivity cables feature a conductivity probe built into the cable. The ProQuatro features a 5,000>
Note: All cable assemblies have temperature sensors built in (except for the Quatro which includes a temperature/conductivity probe). Cable assemblies for conductivity have a built-in conductivity sensor. No additional probe is necessary.
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Quick Specs
| Brand | YSI |
| MPN | 606950 |
| UPC | |
| UNSPSC | 41111900 |
| Made In | United States |









