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Pro20

Product Recycling Recycling

Lab / Field Dissolved Oxygen

 

The Pro20 provides everything you need in a handheld dissolved oxygen meter. Ruggedness, simplicity and reliability are the cornerstones of the instrument's design.

This product is RoHS Compliant
New 3D Interactive Model
YSI Pro20 Lab or Field Dissolved Oxygen Meter
Send me a Quote!


Find a Distributor

YSI has Authorized Distributors all over the globe. View a map and find your closest contact for YSI Pro20 products and accessories.

Find a Distributor

Get Support

Have a question about your YSI Pro20? Check out the support page with resources compiled just for you.

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Want to return a product for service? Here you'll find authorized service centers and instructions on how to send in your YSI Pro20.

Product Service

The YSI Pro20 dissolved oxygen meter is a rugged, user-friendly instrument for dissolved oxygen measurement.  The Pro20 can be used in the lab or the field and can go from one to the other in seconds.

Interested in a Pro Series Product? Check out the trade in program currently going on (U.S. only).

User-replaceable sensors and cables and convenient One Touch Cal feature makes it extremely user friendly. Mil-spec (military spec) connectors, IP-67 waterproof and rubber over molded case, and 1-meter drop tests ensure the instrument remains in your hands to provide years of sampling even in the harshest field conditions. The feature set of the Pro20 results in a low total cost of ownership over the life of the product.

Fast response times with the Polarographic or Galvanic dissolved oxygen sensors allow you to complete your sampling routine quickly. The long life of the Polarographic sensor saves time and money and reduces your overall cost. The Galvanic sensor enables you to start sampling immediately without a warm-up period. Either sensor you choose for the field will give you accurate, quality data.

Additional features include:

  • Internal barometer for highest accuracy
  • Choose field DO sensors (Polarographic or Galvanic) or lab BOD probe for BOD in wastewater
  • One Touch Cal calibrates within 3 seconds with the push of a button
  • Stores 50 data sets
  • Graphic, backlit display and glow in the dark keypad
  • Available with 1, 4, 10, 20, 30 or 100-meter cables
  • View display with polarized sunglasses on
  • Fastest response time on the market with 95% response in 8 seconds with standard membrane
  • Multiple languages include English, Spanish, French and German
  • User replaceable sensors and cables
  • 3-year instrument; 2-year cable warranty

Lab or field - the Pro20 is ready for whatever you need when it comes to oxygen meters.

When ordering the YSI Pro20 you must order the instrument, cable, and dissolved oxygen probe separately, allowing you to choose the system that best fits your application.

If you're interested in learning more about optical dissolved oxygen technology and the YSI ProODO optical DO instrument please visit the ProODO page.

Please visit our extensive dissolved oxygen resource page to learn about all things DO and BOD related; www.YSI.com/weknowDO.

You can also download The Dissolved Oxygen Handbook covering all things DO related from technologies, to maintenance and calibrations, and acquiring the best data.

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BOD Analyst Pro™

 

 

 

 

Pro20 Instrument General Specifications

Barometer Built-in barometer
Cable Lengths* 1- 4- 10- 20- 30- and 100-m lengths (special order up to 100-m)
(3.28, 13.1, 32.8, 65.6, 98 ft.)
Certifications RoHS, CE, WEEE, IP-67, 1-meter drop test
Connector MS (military spec) waterproof with bayonet lock
Data Memory 50 data sets
Dimensions 8.3 cm width x 21.6 cm length x 5.6 cm depth (3.25 in x 8.5 in x 2.21 in)
Languages English, Spanish, German, French
Power 2 alkaline C-cells providing 450 hours of battery life;
low battery indicator
Salinity Input Range 0-70 ppt; manual (automatically compensates for manual input value)
Warranty 3-year instrument; 2-year cable; 1-year Polarographic sensors; 6-months Galvanic sensors
Waterproof IP-67 (even with the battery cover off)
Weight with Batteries 475 grams (1.05 lbs)
* Special order cable lengths up to 100-meters in 10-meter increments available.

 

Pro20 System Specifications (Instrument with Cable & Probe)

Sensor Type Range Accuracy Resolution
Dissolved Oxygen (%) Polarographic or Galvanic 0 to 500% air saturation 0 to 200% air saturation, ± 2% of the reading or  ±2% air saturation,      whichever is greater; 200 to 500% air saturation, ± 6% of the reading 0.1% or 1% air saturation (user selectable)
Dissolved Oxygen (mg/L) Polarographic or Galvanic 0 to 50 mg/L 0 to 20 mg/L, ± 2% of the reading or  ±0.2 mg/L, whichever is greater;   20 to 50 mg/L, ± 6% of the reading 0.01 or 0.1 mg/L (user selectable)
Temperature -5 to 55°C
(0 to 45°C; DO compensation range for mg/L )
±0.2°C (±0.3°C cables over 45-meters) 0.1°C
Barometer 400 to 999.9 mmHg ± 5 mm Hg within ± 5°C temperature range from calibration point 0.1 mm Hg

 

Ordering Guide

Item # Description
6050020 Pro20 Handheld instrument
60520-1 1-m cable for DO/temp
60520-4 4-m cable for DO/temp (includes cable management kit)
60520-10 10-m cable for DO/temp (includes cable management kit)
60520-20 20-m cable for DO/temp (includes cable management kit)
60520-30 30-m cable for DO/temp (includes cable management kit)
60520-100 100-m cable for DO/temp
605780 Self-stirring BOD probe with 2-m (6 ft.) cable included
605202 Galvanic Sensor for any cable
605203 Polarographic Sensor for any cable

 

Ordering Guide for Pro20 Kits

Item # Description Included in Kit
603168 BOD Kit, US Pro20 meter, ProBOD self-stirring BOD probe, Lab Dock , US power supply (073035)
603222 BOD Kit, INT Pro20 meter, ProBOD self-stirring BOD probe, Lab Dock, International power supply (073047)
603169 Pol DO Lab/Field, 4-m Pro20 meter, ProBOD self-stirring BOD probe, 4-meter field cable with polarographic DO probe, Lab Dock, US power supply (073035), soft-sided carrying case (603162)
603170 Gal DO, 4-m Pro20 meter, 4-meter field cable with galvanic DO probe, soft-sided carrying case (603162)
603171 Pol DO, 4-m Pro20 meter, 4-meter field cable with polarographic DO probe, soft-sided carrying case (603162)
603172 Gal DO, 10-m Pro20 meter, 10-meter field cable with galvanic DO probe, soft-sided carrying case (603162)
603173 Pol DO, 10-m Pro20 meter, 10-meter field cable with polarographic DO probe, soft-sided carrying case (603162)

YSI 2002 Galvanic DO Sensor for Pro Series
 

2002 Pro Series Galvanic DO Sensor

YSI 2002 Galvanic sensor for the Professional Plus and Pro20 DO instruments.

YSI 2003 Polarographic DO Sensor for Pro Series
 

2003 Pro Series Polarographic DO Sensor

YSI 2003 Polarographic sensor for the Professional Plus and Pro20 DO instruments.

YSI 3056 Flow Cell Spike Attached to the 3059 Flow Cell
 

3056 Flow Cell Mounting Spike

The mounting spike simply attaches to the base of the 3059 or 3077 flow cell to stabilize the flow cell on the ground.

YSI 3059 Flow Cell Shown on Side Unassembled
 

3059 Flow Cell, Standard 203 mL

Standard flow cell. 203 mL. Easily disassembles for complete cleaning. Can be used with the Pro Series single or dual-parameter cables, 556, or 600XL and 600XLM instruments.

YSI 3062 Cable Management Kit
 

3062 Cable Management Kit

Easily manage your cables. Also attaches to the back of the instrument to create a very compact system.

YSI Belt Clip for All Pro Series Meters
 

3069 Belt Clip

Easily attach any Pro Series, 556, or 650 instrument to your belt or other convenient location with this simple clip.

YSI 3074 Hard Sided Case for the Pro Series Instruments
 

3074 Hard-Sided Carrying Case

The 3074 hard-sided carrying case ideal for all Pro Series products.

YSI 3075 Soft Sided Case for the Pro Series Instruments
 

3075 Soft-Sided Carrying Case

A soft-sided carrying case ideal for all Pro Series products. Cable management kits easily attach to the outside of the case keeping the inside clean and dry.

YSI 3076 Extended Length Flow Cell Shown with 3078 Adaptors
 

3076 Extended Length Flow Cell

Extneded length flow cell for Pro Series single or dual port cables

YSI Tripod Connects to the Back of the Instrument
 

4654 Tripod

This small 4654 tripod supports the instrument at a convenient viewing angle.

YSI 5906 Screw-On Dissolved Oxygen Cap Membrane Kit
 

5906 DO Cap Membrane Kit

YSI 5906 screw-on cap dissolved oxygen membranes.

YSI 5908 Screw-On Dissolved Oxygen Cap Membrane Kit
 

5908 DO Cap Membrane Kit

YSI 5908 screw-on cap dissolved oxygen membranes.

YSI 5909 Screw-On Dissolved Oxygen Cap Membrane Kit
 

5909 DO Cap Membrane Kit

YSI 5909 screw-on cap dissolved oxygen membranes.

YSI 5912 Screw-On Dissolved Oxygen Cap Membrane Kit
 

5912 DO Cap Membrane Kit

YSI 5912 screw-on cap dissolved oxygen membranes for galvanic sensors.

YSI 5913 Screw-On Dissolved Oxygen Cap Membrane Kit
 

5913 DO Cap Membrane Kit

YSI 5913 screw-on cap dissolved oxygen membranes for galvanic sensors.

YSI 5914 Screw-On Dissolved Oxygen Cap Membrane Kit
 

5914 DO Cap Membrane Kit

YSI 5914 screw-on cap dissolved oxygen membranes for galvanic sensors.

YSI 5798 Cable Weight for Pro Series Single and Quatro Cables
 

5978 Cable Weight

The 5978 cable weight attaches to the end of the probe guard. Ideal for longer cables to ensure you reach the depths you need.

YSI Shoulder Strap for Pro Series Instruments
 

603070 Pro Series Shoulder Strap

Easily attach any Pro Series instrument to the shoulder strap to keep your instrument secure and safe when sampling.

YSI Pro20 BOD Lab Kit, US
 

603168 Pro20 BOD Lab Kit US

Pro20 meter, BOD probe, Lab dock, US power supply

YSI Pro20 Lab and Field Kit, 4-meter, US
 

603169 Pro20 4-Meter Lab and Field Kit Polarographic US

Pro20 meter, BOD probe, 4-meter cable with Polarographic DO, Lab dock, US power supply, carrying case, cable management kit

YSI Pro20 Field Kit, 4-meter, Galvanic DO
 

603170 Pro20 4-Meter Field Kit Galvanic

Pro20 meter, 4-meter cable with Galvanic DO probe, carrying case, cable management kit

 YSI Pro20 Field Kit, 4-meter, Polarographic DO
 

603171 Pro20 4-Meter Field Kit Polarographic

Pro20 meter, 4-meter cable with Polarographic DO probe, carrying case, cable management kit

YSI Pro20 Field Kit, 10-meter, Galvanic DO
 

603172 Pro20 10-Meter Field Kit Galvanic

Pro20 meter, 10-meter cable with Galvanic DO probe, carrying case, cable management kit

YSI Pro20 Field Kit, 10-meter, Polarographic DO
 

603173 Pro20 10-Meter Field Kit Polarographic

Pro20 meter, 10-meter cable with Polarographic DO probe, carrying case, cable management kit

YSI Pro20 BOD Lab Kit, International
 

603222 Pro20 BOD Lab Kit International

Pro20 meter, BOD probe, Lab dock, International power supplies

YSI DO Cable for the Pro Plus or Pro20 Handhelds
 

60520 Pro Series DO Cable

The 60520 is a 1-port cable for use with the Professional Plus or Pro20 instrument. The port requires a DO probe.

YSI Ultra Clamp Connects to the Back of the Instrument
 

614 Ultra Clamp

This small clamp supports the instrument at a convenient viewing angle. Ideal for attaching the instrument to the gunwale of a boat, table, or and surface with an edge to clamp to.

YSI 6262 Small, Soft-Sided Carrying Case
 

6262 Small, Soft-Sided Carrying Case

A compact, convenient, soft-sided carrying case ideal for all Pro Series products.

YSI Professional Series Instruments Lab Dock
 

626444 Lab Dock

This dock is ideal in the laboratory, when connecting to Data Manager desktop software, or just storing the instrument for the next trip to the field.  Can be used with the instrument or instrument and Pro Comm II communications saddle.

YSI ProBOD Self-Stirring BOD Probe for the Pro Plus and Pro20 Instruments
 

ProBOD Self-Stirring BOD Probe

The ProBOD self-stirring BOD probes are designed to fit into standard U.S. style 300 mL BOD bottles with various funnels available for use with other tapers.

 

 

 

 

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