The Extech EC500 is a rugged, IP57 waterproof handheld meter that measures five key water quality parameters: pH, Conductivity, TDS (Total Dissolved Solids), Salinity, and Temperature — all with a single combination flat-surface electrode. Designed for field and lab use in environmental, aquaculture, and industrial applications, it features automatic temperature compensation (ATC), adjustable TDS conversion ratio (0.4–1.0), 25-point memory, analog bargraph, and low-maintenance flat-surface sensor technology.
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| pH | 0.00 – 14.00 | 0.01 | ±0.01 | pH |
| Conductivity |
0 – 199 µS/cm 200 – 1999 µS/cm 2.00 – 19.99 mS/cm |
0.1 µS/cm | ±2% Full Scale | µS/cm / mS/cm |
| TDS |
0 – 99.9 ppm 100 – 999 ppm 1.00 – 9.99 ppt |
0.1 ppm | ±2% FS | ppm / ppt |
| Salinity | 0.0 – 99.9 | 0.1 | ±2% FS | ppt (g/L) |
| Temperature | 23 to 194 | 0.1 | ±1.8°F / ±1°C | °F / °C |
| ATC | Yes | — | — | — |
| Memory | 25 data sets | — | — | — |
| Waterproof Rating | IP57 | — | — | — |
| Dimensions | 1.4 x 7.3 x 1.6 | — | — | in (36x186x41mm) |
| Weight | 3.8 | — | — | oz (110g) |
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The Extech EC500 is a rugged, IP57 waterproof handheld meter that measures five key water quality parameters: pH, Conductivity, TDS (Total Dissolved Solids), Salinity, and Temperature — all with a single combination flat-surface electrode. Designed for field and lab use in environmental, aquaculture, and industrial applications, it features automatic temperature compensation (ATC), adjustable TDS conversion ratio (0.4–1.0), 25-point memory, analog bargraph, and low-maintenance flat-surface sensor technology.
|
|
|
|
|
|
|---|---|---|---|---|
| pH | 0.00 – 14.00 | 0.01 | ±0.01 | pH |
| Conductivity |
0 – 199 µS/cm 200 – 1999 µS/cm 2.00 – 19.99 mS/cm |
0.1 µS/cm | ±2% Full Scale | µS/cm / mS/cm |
| TDS |
0 – 99.9 ppm 100 – 999 ppm 1.00 – 9.99 ppt |
0.1 ppm | ±2% FS | ppm / ppt |
| Salinity | 0.0 – 99.9 | 0.1 | ±2% FS | ppt (g/L) |
| Temperature | 23 to 194 | 0.1 | ±1.8°F / ±1°C | °F / °C |
| ATC | Yes | — | — | — |
| Memory | 25 data sets | — | — | — |
| Waterproof Rating | IP57 | — | — | — |
| Dimensions | 1.4 x 7.3 x 1.6 | — | — | in (36x186x41mm) |
| Weight | 3.8 | — | — | oz (110g) |