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Hydrological Equipment

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Hanna Instruments® pHep® 4 pH/Temperature Tester

1.00 LBS

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Hanna Instruments pHep 4 pH/Temperature Tester


Rugged and reliable, this tester measures pH as well as temperature (in °C or °F). The waterproof tester is designed to float and offers automatic temperature compensation, automatic calibration, a HOLD function, efficient two-button operation, and a stability indicator. In addition to automatic shut-off that conserves battery power, the tester displays battery percentage during startup and features and a Battery Error Prevention System. Includes tester, pH electrode, electrode removal tool, batteries, and instructions.


Range: pH, -2.0 to 16.0 pH; Temperature, 23.0°F to 140.0°F (-5.0°C to 60.0°C). Resolution: pH, 0.1 pH; Temperature, 0.1°F (0.1°C). Accuracy at 20°C: pH, ±0.1 pH; Temperature, ±1°F (±0.5°C). pH Calibration: Automatic, at 1 or 2 points with 2 sets of standard buffers (pH 4.01/7.01/10.01 or pH 4.01/6.86/9.18). Temperature Compensation: Automatic. Battery: Four 1.5V batteries (included). Battery Life: Approximately 300 hours of continuous use, auto-off after 8 minutes of non-use. Operating Environment: 23°F to 122°F (-5°C to 50°C), RH max 100%. Dimensions: 6.4” x 1.6” x 1.0”. Weight: 3.5 oz.