The HI99141 is a waterproof, portable pH and temperature meter specifically designed for boilers and cooling towers. The HI729113 pre-amplified double junction pH probe features a flat tip sensor that is easy to clean and prevents solids in solutions from collecting on the sensor. The titanium body of the HI729113 functions as a potential matching pin for increased stability of readings and extended sensor life.
- Automatic Temperature Compensation
- Automatic Two-Point Calibration
- Waterproof
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More Information pH Range -2.00 to 16.00 pH; -2.0 to 16.0 pH pH Resolution 0.01 pH; 0.1 pH pH Accuracy ±0.02 pH; ±0.1 pH pH Calibration automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) pH Temperature Compensation automatic ‐5.0 to 105.0 °C/23.0 to 221.0 °F pH CAL Check (electrode diagnostics) probe condition indicator mV Range ±825 mV (pH‐mV) mV Resolution 1 mV (pH‐mV) mV Accuracy ±1 mV (pH‐mV) Temperature Range -5.0 to 105.0°C / 23.0 to 221.0°F Temperature Resolution 0.1°C / 0.1°F Temperature Accuracy ±0.5°C (up to 60°C); ±1.0°C (outside) / ±1°F (up to 140°F); ±2.0°F (outside) pH Electrode HI729113 titanium body, pre-amplified pH electrode with internal temperature sensor, quick connect DIN connector and 1 m (3.3’ cable) (included) Automatic Shut-Off user selectable: after 8 min, 60 min or disabled Battery Type/Life 1.5V (3) AAA / approximately 1400 hours of continuous use IP Protection IP67 Environment 0 to 50°C (32 to 122°F); RH max 100% Dimensions 154 x 63 x 30 mm (6.1 x 2.5 x 1.2”) Weight 196 g (6.91 oz.) Ordering Information HI99141 is supplied with HI729113 pH probe, HI70004 pH 4.01 buffer solution sachet (1), HI70007 pH 7.01 buffer solution sachet (1), HI700601 electrode cleaning solution sachets (2), batteries, 100 mL beaker (1), instructions, calibration certificates for meter and probe, and rugged thermoformed carrying case.