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

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.

The 60520 dissolved oxygen cables ONLY work with the YSI Pro Plus and Pro20 instruments.

Cables can be ordered in lengths of 1-, 4-, 10-, 20-, and 30-meters. Special orders up to 100-meters in 10-meter increments can also be placed. Cables over 1-meter come with the 603062 cable management kit.

Cables do NOT come with the DO sensor, so a 605202 Galvanic or 605203 Polarographic DO sensor must be ordered separately. Cables do feature an integrated temperature sensor.