YSI Pro Plus Quatro Water Quality Meter
The YSI Professional Plus handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, temperature and ORP. Ammonium (ammonia), nitrate and chloride may be available. Call your local Eco-Rental Solutions office for more information.
Additional Information
- Easy-to-install cable weights; can be daisy-chained for additional weight*
- Rubber, over-molded IP-67 waterproof case (even without the battery cover)*
- 3-year instrument warranty
- 2-year cable warranty*
- Rugged cables, sensors, and military-spec connectors*
- Drop-tested 1 meter at all angles*
- Scratch-resistant lens; viewable with polarized glasses
- Instrument floats
- Weighted, user-replaceable multi-sensor design
- 5,000 data set memory
- Detailed on-screen Help function*
- Free, Data Manager desktop software and ProComm II saddle*
- Interval or single-event logging
- 100 folder & site list data structure*
- Password protection
- Detailed GLP data
- USB connection also powers the instrument
- 6-point cal with auto-buffer recognition*
- User-adjustable auto-stable with prompts*
- User-upgradeable software via waterproof USB port
- Recalibration prompts
- Search function filters user-defined data information*
- Backlit display AND keypad*
- Surface water
- Wastewater
- Aquaculture
- Groundwater
Professional Plus System Specifications (Cables & Sensors)
| Sensor Type | Range | Accuracy | Resolution | Units | Calibration | |
| Dissolved Oxygen (%) (temp comp range -5 to 45°C) | Polarographic or Galvanic | 0 to 500% | 0 to 200% (± 2% of reading or 2% air saturation, whichever is greater) 200% – 500% (± 6% of reading) | 1% or 0.1% air saturation (user selectable) | % | 1 or 2-points with zero |
| Dissolved Oxygen (mg/L) (temp comp range -5 to 45°C) | Polarographic or Galvanic | 0 to 50 mg/L | 0 to 20 mg/L (± 2% of reading or 0.2 mg/L, whichever is greater) 20 – 50 mg/L (± 6% of reading) | 0.1 or 0.01 mg/L (user selectable); 0.1% air saturation | mg/L, ppm | 1 or 2-points with zero |
| Temperature (Field rugged cables) | -5 to 70°C | ±0.2°C (±0.3°C cables over 45-meters) | 0.1°C | °C, °F, K | ||
| Temperature (Lab-grade)* | 0 to 40°C | ±0.35°C | 0.1°C | °C, °F, K | ||
| Conductivity** | Four electrode cell | 0 to 200 mS/cm (auto range) | ±0.5% of reading or 0.001 mS/cm, whichever is greater (1-, 4-m cable) ±1% of reading or 0.001 mS/cm, whichever is greater (20-m cable) | 0 to 0.500 mS/cm = 0.001 0.501 to 50.00 mS/cm = 0.01 50.01 to 200 mS/cm = 0.1 (range dependent) | µS, mS | 1 point |
| Salinity | Calculated from conductivity and temperature | 0 to 70 ppt | ±1.0% of reading or 0.1 ppt, whichever is greater | 0.01 ppt | ppt, PSU | 1 point |
| pH | Glass Combination Electrode | 0 to 14 units | ±0.2 units | 0.01 units | mV, pH units | 1, 2, 3, 4, 5, or 6 point (user selectable); US, NIST or Custom Buffers |
| ORP | Platinum button | –1999 to +1999 mV | ±20 mV in redox standards | 0.1 mV | mV | 1 point |
| Total Dissolved Solids (TDS) | Calculated from conductivity and temperature | 0 to 100 g/L TDS constant range 0.30 to 1.00 (0.64 default) | 0.001, 0.01, 0.1g/L | kg/L, g/L | ||
| Barometer | Piezoresistive | 375 to 825 mmHg | ±1.5 mmHg from 0 to 50°C | 0.1 mmHg | mmHg, inHg, mbar, psi, kPa, ATM | 1 point |
| Item Description | Purchase Price |
| YSI Professional Plus (Meter Only) | $1,225.50 |
| Quatro 1M Cable Assembly (Requires Sensors) | $1,107.22 |
| Quatro 4M Cable Assembly (Requires Sensors) | $1,372.75 |
| Quatro 10M Cable Assembly (Requires Sensors) | $1,429.75 |
| Quatro 20M Cable Assembly (Requires Sensors) | $1,539.00 |
| Quatro 30M Cable Assembly (Requires Sensors) | $1,670.10 |
| pH Sensor | $170.05 |
| ORP Sensor | $199.50 |
| Polarographic DO Probe | $179.55 |
| Quatro Flow-thru Cell | $375.25 |
