Pro20 Dissolved Oxygen Meter

Pro20 Dissolved Oxygen Instrument

YSI Pro20 dissolved oxygen meter. This dissolved oxygen instrument is designed tough enough for the field and smart enough for the lab conducting BODs.

Model 55, Pro20, and Pro20i Dissolved Oxygen Meter Comparison

The YSI Model 55 dissolved oxygen handheld was an extremely popular meter for YSI customers. Since it's discontinuation we've launched a few models to easily replace the Model 55 with much better benefits. This video compares the Model 55 to its direct replacement - the YSI Pro20i (https://www.ysi.com/pro20i) - and reviews improvements and features of the Pro20i. The Pro20 (https://www.ysi.com/pro20) is also reviewed, although it has a user-replaceable cable unlike the Pro20i and Model 55.

Price$738.00 (US Only)

SKU6050020

In Stock 16

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The Pro20 provides everything you need in a handheld dissolved oxygen meter. Its design is based on ruggedness, simplicity, and reliability. Available YSI-compatible sensors are EPA-approved for reporting BOD, CBOD, and DO in wastewater compliance. Explore the ProSolo for an optical dissolved oxygen handheld.

Instrument Only. Cables, probes/sensors, and accessories sold separately.

Order Meter

SKU	Description	Price	Quantity
6050020	Pro20	$738.00	* * *

Order Cables

SKU	Description	Price	Quantity
605780	ProBOD - Pro Series BOD Probe	$910.00	* * *
60520-1	Pro Series DO Cable - 1 m	$312.00	* * *
60520-4	Pro Series DO Cable - 4 m	$332.75	* * *
60520-10	Pro Series DO Cable - 10 m	$395.25	* * *
60520-20	Pro Series DO Cable - 20 m	$468.00	* * *
60520-30	Pro Series DO Cable - 30 m	$598.00	* * *
60520-100	Pro Series DO Cable - 100 m	$941.25	* * *

Order Sensors

SKU	Description	Price	Quantity
605203	2003 - Pro Series Polarographic Dissolved Oxygen Sensor	$229.00	* * *
605202	2002 - Pro Series Galvanic Dissolved Oxygen Sensor	$229.00	* * *

Order Accessories

SKU	Description	Price	Quantity
605306	5908 - Replacement Standard Membrane Kit for 605203 Polarographic DO sensor	$79.25	* * *
603075	3075 - Pro Series Soft Sided Carrying Case	$160.50	* * *
603077	3077 - Flow Cell Kit, 1 or 2 Port Sensor	$494.50	* * *
603070	3070 - Shoulder strap	$39.25	* * *
EWPRO20	Extended Warranty PRO20	$110.00	* * *
605913	5913 - Replacement Standard Membrane Kit for 605202 Galvanic DO sensor	$81.25	* * *
603074	3074 - Pro Series Hard Sided Carrying Case	$371.00	* * *
603162	6262 - Pro Series Soft Sided Small Carrying Case	$116.50	* * *

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Overview
The YSI Pro20 dissolved oxygen meter is a rugged, user-friendly instrument for measuring dissolved oxygen or BOD that can be used interchangeably in the lab and the field. Depending on your needs, you can choose between a Polarographic DO sensor, a Galvanic DO sensor, or a BOD probe.

Top Features
- User-replaceable sensors and cables
- One Touch Cal for convenient and quick calibration
- Choice of DO sensor (Polarographic or Galvanic) or lab BOD probe for BOD in wastewater
- Military spec connectors, IP-67 waterproofing, and 1-meter drop tested
- Rubber over-molded case
- Low total cost of ownership
- Internal barometer for highest accuracy
- Stores 50 data sets
- Graphic, backlit display and glow-in-the-dark keypad visible with polarized sunglasses on
- Available with 1, 4, 10, 20, 30 or 100-meter cables
- Multiple languages including English, Spanish, French, and German
- 3-year instrument warranty; 2-year cable warranty
- Fastest response time on the market with 95% response in 8 seconds with standard membrane
Polarographic or Galvanic?

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, money, and reduces your overall cost. The Galvanic sensor enables sampling to start immediately without a warm-up period. Regardless of sensor selection, you will receive accurate, quality data!

Please visit the Pro20 Kits page for fully assembled systems. For an integral cable assembly (not user-replaceable), YSI offers the Pro20i.

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

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

Specifications

Certifications	CE, 1-meter drop test, Assembled in USA, RoHS, WEEE, IP-67
Connector	MS (military spec) waterproof with bayonet lock
Digital / Digital Sensors	Analog
Equipment used with	ProBOD, ProSeries 20-x cables
Graphic Display	Graphic display with detailed Help, backlit display AND keypad
Languages	French, English, German, Spanish
Logging Capabilities	Single
Measurement Range	0 to 500%; 0 to 50 mg/L
Memory	50 data sets
Multiparameter	Yes
Parameters Measured	Temperature, Dissolved Oxygen, Built-in barameter
Power	2 alkaline C-cells provide 450 continuous hours at ambient temperature without backlight
Sampling	Yes
Temperature	-5 to 55°C, +/-0.3°C
Unit of Measure	Barameter-mmHg, °F, Temperature- °C, Dissolved Oxygen-%, air saturation, mg/L
User Calibratable	Yes
User Replaceable	Yes
Warranty	3-year instrument; 2-year field cables
Waterproof	IP-67 (even with the battery cover off), floats

Accessories

Pro Series Dissolved Oxygen/Temperature Field Cable

YSI 20 Cable - DO and temperature cable assembly

Pro Series Galvanic Dissolved Oxygen Sensor

YSI 2002 Galvanic Dissolved Oxygen sensor for the Pro Series

Pro Series Polarographic Dissolved Oxygen Sensor

YSI 2003 Polarographic Dissolved Oxygen sensor for the Pro Series (Yellow Membrane Kit)

Flow Cell Mounting Spike

Flow Cell Mounting Spike

Flow Cell, Standard, 203 mL

Flow Cell, Standard, 203 mL

Cable Management Kit

Cable Management Kit

Belt Clip

Belt Clip

Pro Series Hard Sided Carrying Case

Carrying Case, Hard Sided

Pro Series Soft Sided Carrying Case

Carrying Case, Soft Sided

Flow Cell, Extended Length

Flow Cell, Extended Length

Tripod Clamp

Tripod Clamp

Cap Membrane Kit 2.00 Mil PE

Cap Membrane Kit 2.00 Mil PE (6 each), includes electrolyte (blue cap)

Cap Membrane Kit 1.25 Mil PE

Cap Membrane Kit 1.25 Mil PE (6 each), Galvanic, includes electrolyte (yellow cap)

Cap Membrane Kit 1.25 Mil PE

Cap Membrane Kit 1.25 Mil PE (6 each), Polarographic, includes electrolyte (yellow cap)

Weight, Probe/Cable, 4.9 oz

Weight, Probe/Cable, 4.9 oz

Shoulder Strap

Shoulder Strap

Pro Series Lab Dock

Pro Series Lab Dock

Pro Series BOD Probe

Self-stirring BOD probe for use with the Pro20 and Pro Plus

How to Order

Step 1: Order Instrument

SKU	Description
6050020	Pro20 Handheld instrument

Step 2: Order Cable(s)

SKU	Description
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

Step 3: Order Sensor(s) and Probe(s)

SKU	Description
605780	Self-stirring BOD probe with 2-m (6 ft.) cable included
605202	Galvanic Sensor for any cable
605203	Polarographic Sensor for any cable

Video

Pro20 Dissolved Oxygen Instrument

YSI Pro20 dissolved oxygen meter. This dissolved oxygen instrument is designed tough enough for the field and smart enough for the lab conducting BODs.

Model 55, Pro20, and Pro20i Dissolved Oxygen Meter Comparison

The YSI Model 55 dissolved oxygen handheld was an extremely popular meter for YSI customers. Since it's discontinuation we've launched a few models to easily replace the Model 55 with much better benefits. This video compares the Model 55 to its direct replacement - the YSI Pro20i (https://www.ysi.com/pro20i) - and reviews improvements and features of the Pro20i. The Pro20 (https://www.ysi.com/pro20) is also reviewed, although it has a user-replaceable cable unlike the Pro20i and Model 55.
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