Used YSI Pro20 Dissolved Oxygen Meter

Used YSI Pro20 Dissolved Oxygen Meter


The YSI Pro20 dissolved oxygen meter is a rugged, user-friendly instrument for dissolved oxygen measurement in the lab or field.


  • One Touch Cal feature allows you to calibrate in % mode with the press of a button
  • IP67 waterproof, Military Spec connectors, rubber over mold, 1-meter drop test
  • 90-day warranty on used equipment
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Why Buy From Fondriest?


The YSI Pro20 handheld dissolved oxygen and temperature meter is ideal for use in the lab or field. Utilizing YSI's durable MS (Military Spec) cable connector, the instrument can accept rugged field sensors or a self-stirring lab BOD sensor. To meet the needs of various applications, cables are available in lengths from 1 to 100 meters. The included cable management kit even makes the use of long cables easy and convenient.

The Pro20 is YSI's first dissolved oxygen instrument to offer a convenient "One Touch Cal" feature for air calibrations. This unique feature, along with others like user replaceable sensors, simplifies operation and saves time and money. The YSI Pro20 is completely waterproof, withstands 1-meter submersion making it worthy of your demands in the field.

  • Field-replaceable electrodes (choose between Polarographic or Galvanic)
  • One-touch cal allows DO calibration with the press of a button
  • Stores 50 data sets to ensure data integrity
  • Graphic, backlit display
  • Standard 1- 4- 10- 20- 30- and 100-m weighted cable lengths (special order up to 100-meter cables in 10-meter increments)
  • IP-67, impact-resistant, waterproof case
  • Easy-to-use, screw-on cap DO membranes
  • English, Spanish, German and French languages
  • Glow in the dark keypad
  • Quick response times; 95% response time in approximately 8 seconds with standard membrane
What's Included:
  • (1) Pro20 display
  • (2) C-cell batteries
Image Part # Product Description Price Stock Order
Used YSI Pro20 Dissolved Oxygen Meter 6050020-R Used YSI Pro20 dissolved oxygen meter (cable/sensor sold separately)
In Stock
Image Part # Product Description Price Stock Order
Used YSI Pro20 Dissolved Oxygen Cable Assembly 60520-4-R Used YSI Pro20 cable assembly (DO) with temperature sensor, 4m
In Stock
YSI 2002 Galvanic Dissolved Oxygen Sensor 605202 2002 galvanic DO sensor, Pro Series
In Stock
YSI 2003 Polarographic Dissolved Oxygen Sensor 605203 2003 polarographic DO sensor, Pro Series
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YSI 6262 Small Soft-Sided Carrying Case 603162 6262 small soft-sided carrying case for Pro Series meters with up to 10m cable
In Stock

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