YSI-Pro2030 
Dissolved Oxygen and Conductivity Meter
User-replaceable sensors and cables and convenient Quick 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 Pro2030 results in a low total cost of ownership over the life of the product and proves that it is smarter, tougher, and more versatile.

Features:
 * Internal barometer for highest accuracy
 * Choose field DO sensors (Polarographic or Galvanic)
 * Quick Cal allows DO calibrations within 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, or 30-meter cables (4-meter and longer cables include cable management kit)
 * View display with polarized sunglasses on
 * Fastest DO response time on the market with 95% response in 8 seconds with standard membrane
 * Multiple languages include English, Spanish, French and German
 * User replaceable DO sensors and cables •Conductivity cell built-in
 * 3-year instrument; 2-year cable warrantyA great alternative to the Pro2030 is a ProSolo ODO/CT system. Rather than an electrochemical DO sensor, the ProSolo ODO/CT uses an optical DO sensor that requires less maintenance and is not dependent on stirring.

 
                 
                 |   Certifications | CE, RoHS, Assembled in USA, IP-67, WEEE, 1-meter drop test | 
| Connector | MS (military spec) waterproof with bayonet lock | 
| Digital / Digital Sensors | Analog | 
| Equipment used with | ProSeries 2030-x cables | 
| Graphic Display | backlit display AND keypad, Graphic display with detailed Help | 
| Languages | French, English, Spanish, German | 
| Logging Capabilities | Single | 
| Measurement Range | Dissolved Oxygen % air saturation- 0 to 500% air saturation Dissolved Oxygen (mg/L)-0 to 50 mg/L Conductivity-0 to 200 mS/cmSalinity-0 to 70 ppt Total Dissolved Solids (TDS)-0 to 100 g/L TDS constant range .30 to 1.00 (.65 default) Temperature--5 to 55C
 Barometer-500 to 800 mmHg
 | 
| Memory | 50 data sets | 
| Multiparameter | Yes | 
| Parameters Measured | Dissolved Oxygen, Conductivity, Salinity, Total Dissolved Solids (TDS), Temperature, Barometer | 
| Power | 2 alkaline C-cells provide 400 continuous hours at ambient temperature without backlight | 
| Sampling | Yes | 
| Unit of Measure | Temperature-C, mg/L, Total Dissolved Solids (TDS)-g/L, Conductivity-mS./cm, Salinity-ppt, Dissolved Oxygen-% air saturation,Barometer-mmHg
 | 
| User Calibratable | Yes | 
| User Replaceable | Yes | 
| Warranty | 3-year instrument; 2-year field cables, 1-year Polarographic sensors, 6-months Galvanic | 
| Waterproof | floats, IP-67 (even with the battery cover off) |