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YSI Pro 20 Dissolved Oxygen Meter, Polarographic
The Pro20 provides everything you need in a handheld dissolved oxygen meter. Ruggedness, simplicity and reliability are the cornerstones of the instrument’s design.
Additional Information
- 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 (20 meter cable available for rental)
- 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
- Groundwater
- Wastewater
- Aquaculture
- Surface water
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) |
