The SPR-511 is a versatile and portable digital meter designed to measure pH, conductivity, total dissolved solids (TDS), and salinity in water and aqueous solutions. With automatic temperature compensation (ATC) and a large LCD display with bar graph, this meter provides accurate and reliable readings for environmental monitoring, water treatment, aquaculture, hydroponics, and laboratory applications.
The device features high accuracy, multi-point calibration, and temperature measurement capabilities, making it ideal for professionals who require precise water quality analysis.
| Parameter | Details |
|---|---|
| pH Measurement | Range: 0.00 – 14.00 pH; Accuracy: ±0.01 pH typical |
| pH Resolution | 0.01 pH |
| pH Calibration | Multi-point calibration with auto-buffer recognition |
| pH Reference Junction | Permanent gel, non-refillable |
| Conductivity Range | 0.0 – 199.9 µS; 200 – 1999 µS; 2.00 – 19.99 mS |
| Conductivity Accuracy | ±1% of full scale |
| TDS Range | 0.0 – 99.9 ppm/mg/L; 100 – 999 ppm/mg/L; 1.00 – 9.99 g/L (ppt) |
| Salinity Range | 0.0 – 99.9 ppm; 100 – 999 ppm; 0.00 – 9.99 ppt |
| TDS Conversion Factor | Adjustable from 0.40 to 1.00 |
| Salinity Conversion Ratio | Auto-select between 0.40 and 0.60 |
| Temperature Compensation | Conductivity ATC range: 0°C – 60°C (32°F – 140°F); Coefficient: 2.0% / °C |
| Temperature Range | 0°C – 90°C (32.0°F – 194°F) |
| Temperature Resolution | 0.1°C / 0.1°F |
| Display | 2000 count LCD with bar graph |
| Power Supply | Not specified (typically 3 x AAA or similar) |
| Operating Environment | Indoor use only |
| Approvals | CE Marked |
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The SPR-511 is a versatile and portable digital meter designed to measure pH, conductivity, total dissolved solids (TDS), and salinity in water and aqueous solutions. With automatic temperature compensation (ATC) and a large LCD display with bar graph, this meter provides accurate and reliable readings for environmental monitoring, water treatment, aquaculture, hydroponics, and laboratory applications.
The device features high accuracy, multi-point calibration, and temperature measurement capabilities, making it ideal for professionals who require precise water quality analysis.
| Parameter | Details |
|---|---|
| pH Measurement | Range: 0.00 – 14.00 pH; Accuracy: ±0.01 pH typical |
| pH Resolution | 0.01 pH |
| pH Calibration | Multi-point calibration with auto-buffer recognition |
| pH Reference Junction | Permanent gel, non-refillable |
| Conductivity Range | 0.0 – 199.9 µS; 200 – 1999 µS; 2.00 – 19.99 mS |
| Conductivity Accuracy | ±1% of full scale |
| TDS Range | 0.0 – 99.9 ppm/mg/L; 100 – 999 ppm/mg/L; 1.00 – 9.99 g/L (ppt) |
| Salinity Range | 0.0 – 99.9 ppm; 100 – 999 ppm; 0.00 – 9.99 ppt |
| TDS Conversion Factor | Adjustable from 0.40 to 1.00 |
| Salinity Conversion Ratio | Auto-select between 0.40 and 0.60 |
| Temperature Compensation | Conductivity ATC range: 0°C – 60°C (32°F – 140°F); Coefficient: 2.0% / °C |
| Temperature Range | 0°C – 90°C (32.0°F – 194°F) |
| Temperature Resolution | 0.1°C / 0.1°F |
| Display | 2000 count LCD with bar graph |
| Power Supply | Not specified (typically 3 x AAA or similar) |
| Operating Environment | Indoor use only |
| Approvals | CE Marked |