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YSI Pro20 Dissolved Oxygen Meter

Updated:2025-03-13

Brand:YSI
Model：Pro20
Description: The Pro20 provides everything you need in a handheld dissolved oxygen meter. Ruggedness, simplicity and reliability are the cornerstones of the instrument's design. Available sensors are EPA approved
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Product Details

Pro20 Dissolved Oxygen Meter Introduction：

user's manual

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.

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

Specifications：

Certifications	IP-67, RoHS, Assembled in USA, CE, 1-meter drop test, WEEE
Connector	MS (military spec) waterproof with bayonet lock
Digital / Digital Sensors	Analog
Equipment used with	ProSeries 20-x cables, ProBOD
Graphic Display	backlit display AND keypad, Graphic display with detailed Help
Languages	English, Spanish, French, German
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
Unit of Measure	air saturation, mg/L, Barameter-mmHg, °F, Temperature- °C, Dissolved Oxygen-%
User Calibratable	Yes
User Replaceable	Yes
Warranty	3-year instrument; 2-year field cables
Waterproof	floats, IP-67 (even with the battery cover off)