Overview
User-replaceable YSI Pro Series sensors for the ProQuatro and Pro20 families: 1001 pH, 1002 ORP, 2002 galvanic dissolved oxygen and the 5560 conductivity/temperature sensor. No tools are needed to install them; they plug into the matching Pro Series cable.
- 1001 pH and 1002 ORP: ion-selective sensors for ProQuatro, Pro10, Pro1020 and Pro1030 cables (including the ProQuatro Quatro cable)
- 2002 galvanic DO: grey body, ships with a 5913 (1.25 mil PE, yellow) membrane kit; for Pro20, Pro20i, Pro1020, Pro2030 and ProQuatro
- 5560 conductivity/temperature sensor: YSI lists it as a sensor option for the Quatro cable
- Easy user-replaceable sensors, no tools necessary
- pH and ORP carry a 1-year warranty; the galvanic DO sensor 6 months
Pick the sensor for your cable and instrument. Request a quote for pricing and availability.
Specifications
- 1001 pH (YSI-605101)
- 0 to 14 pH units / resolution 0.01 / accuracy ± 0.1 (with ProQuatro)
- 1002 ORP (YSI-605102)
- -1999 to 1999 mV / resolution 0.1 mV / accuracy ± 20 mV (with ProQuatro)
- 2002 Galvanic DO (YSI-605202)
- 0 to 50 mg/L / 0 to 500% air saturation / accuracy ± 2% of reading or 0.2 mg/L (0 to 20 mg/L)
- 5560 Conductivity/Temperature (YSI-005560)
- 0 to 200 mS/cm auto-ranging / accuracy ± 0.5% of reading or 0.001 mS/cm (1 and 4 m cables)
- Compatible Cables
- pH and ORP: 60510 / 6051020 / 6051030 / 605790 Quatro. Galvanic DO: 60520 / 6052030 / 6051020 / 605790 Quatro
- Compatible Instruments
- pH and ORP: ProQuatro / Pro10 / Pro1020 / Pro1030. Galvanic DO: Pro20 / Pro20i / Pro1020 / Pro2030 / ProQuatro
- Warranty
- pH and ORP 1 year / galvanic DO 6 months
Documents
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
What warranty does it carry?
The manufacturer's warranty applies. The exact terms are in the warranty document. Read the warranty
Related equipment we stock

YSI ProQuatro 4 m Quatro Cable With Conductivity/Temperature Sensor (605790-4)
Length: 4 m | Ports: 4

YSI 5913 Screw-On Cap DO Membrane Kit for Galvanic Sensors (605913)
Membrane: 1.25 mil PE | Caps In Kit: 6

YSI Pro Series Accessories: 6850 Quatro Flow Cell and Hard-Sided Carrying Case
Flow Cell: 606850 | Case: 603074

Solinst Eureka Underwater Cables, SDI-12 Adapter and Accessories for Water Quality Sondes
Cable Length: 3 to 200 m | Outputs: SDI-12 / MODBUS / RS-232 | Turbidity Standard: 100 FNU