The Pro20i is a handheld instrument for dissolved oxygen and temperature with an integral (non-detachable) cable. It is a direct replacement for the discontinued Model 55 and 550A instruments. Available YSI-compatible sensors are EPA-approved for reporting DO in wastewater compliance. Instrument, cables, probes/sensors included.
Explore the ProSolo for an optical dissolved oxygen handheld.
Specifications |
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|---|---|
| Cable Options | 1- 4- 10-m lengths (3.28, 13.1, 32.8 ft.) |
| Certification | RoHS, CE, WEEE, IP-67 waterproof, 1-meter drop test |
| Languages | English, Spanish, German, French |
| Memory | 50 data sets |
| Power | 2 alkaline C-cells providing ~400 hours of battery life (without backlight); low battery indicator when 1 hour is left |
| Size |
8.3 cm width x 21.6 cm length x 5.6 cm depth (3.25 in. x 8.5 in. x 2.2 in.) |
| Warranty |
3-year instrument; 2-year cable; 1-year polarographic sensors; 6-month galvanic sensors |
| Weight | 475 grams (1.05 lbs.) (with batteries) |
The YSI Pro20i dissolved oxygen meter is a rugged, user-friendly instrument for measuring dissolved oxygen. Depending on your needs, you can choose between a user-replaceable Polarographic DO sensor or a Galvanic DO sensor.
Top Features
- Integral (built-in) field cable in 1, 4, and 10-meter variations with user-replaceable DO sensors
- One Touch Cal for convenient and quick calibration
- Choice of DO sensor (Polarographic or Galvanic)
- Military spec connectors, IP-67 waterproof, and 1-meter drop tested
- Rubber over-molded case
- Low total cost of ownership
- Internal barometer for highest accuracy
- 95% response in 8 seconds with standard membrane
- Stores 50 data sets
- Graphic, backlit display and glow-in-the-dark keypad visible with polarized sunglasses on
- Multiple languages include English, Spanish, French, and German
- 3-year instrument warranty; 2-year cable warranty; 1-year polarographic sensor warranty; 6-month galvanic sensor warranty
VN 2311 
BR 1631 
US 1513 
CN 798 
MY 666 
SG 565 
GB 363 
IN 341 
