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The microprocessor-based OAKTON waterproof pH/CON 300 meter meets IP67 ratings for dustproof and waterproof ingress protection.
Advanced setup mode lets you customize meter parameters, view calibration values for pH and conductivity (TDS), view pH electrode slope for diagnostic purposes, and more. All functions are accessible from the waterproof keypad.
| Measures | pH, Conductivity, TDS, °F, °C |
| pH Range | -2.00 to 16.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.01 pH |
| pH Calibration | 5 points (pH 1.68, 4.01, 7.01, 10.01, 12.45) |
| mV Range | -2000 to +2000 mV |
| mV Resolution | 0.1 mV ±199.9 mV, 1 mV beyond |
| mV Accuracy | ±0.2 mV ±199.9 mV, ±2 mV beyond |
| mV Calibration | Offset up to ±2000 mV |
| Conductivity Range | 0.00 to 19.99 µS, 0.0 to 199.9 µS, 0 to 1999 µS, 0.00 to 19.99 mS, 0.0 to 199.9 mS |
| Conductivity Resolution | 0.01 µS, 0.1 µS, 1 µS, 0.01 mS, 0.1 mS |
| Conductivity Accuracy | ±1% full scale |
| Conductivity Calibration | Five-point calibration |
| TDS Range | 0 to 9.99 ppm 10.0 to 99.9 ppm 100 to 999 ppm 1.00 to 9.99 ppt 10.0 to 199.9 ppt |
| TDS Resolution | 0.01 ppm, 0.1 ppm, 1 ppm, 0.01 ppt, 0.1 ppt |
| TDS Accuracy | ±1% full scale |
| TDS Calibration | one point per range (up to 5) |
| Temperature Range | 0.0 to 100.0°C |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±0.5°C |
| Temperature Calibration | offset 0.1°C increments |
| ATC | manual or automatic from 0.0 to 100.0°C |
| Power | 4 1.5 V AAA batteries, >200 hours continuous use |
| Memory | Up to 16 sets with temperature |
| Optional AC Power | Yes |
| Built-in Stand | Yes |
| Dual Display | Yes |
| Waterproof/Dustproof (IP67) | Yes |
| Dimensions | 7.5" x 3.5" x 1.75" (19 x 9 x 4.5 cm) |
| Shipping weight | 2.0 lb (0.9 kg) |
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