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Product Description


How to calibrate a pH meter?
1. Before calibration, prepare 4 beakers with 250ml of clean water/pH 4.00/pH 6.86/pH 9.18 standard solution.
2. Rinse the probe electrode with clean distilled water pH0 and wipe dry. Turn on the pH meter and adjust to pH mode.
3. Immerse the electrode in pH 6.86 buffer solution and when the value stabilizes, press the "CAL" key for 5 seconds, the screen will display "CAL" and when pH 6.86 blinks 3 times, the calibration of pH 6.86 is complete.
4. Repeat above steps to calibrate pH4.00 or pH9.18


Measuring Range
PH: | 0-14 |
TDS: | 0-200000ppm |
EC: | 0-200000us/cm |
Salinity: | 0-20%, protect human health |
ORP negative potential: | -1999MV ~ +1999MV. Can reflect aquatic systems |
H2 hydrogen rich: | 0-2400PPb, Hydrogen water can delay the oxidation effect to a certain extent, Regular consumption of hydrogen-rich water can delay aging |
S.G: | 1.000-1.222 (specific gravity of seawater) |
Temperature: | 0-60℃/32.0-140°F; free switch between degrees Celsius and Fahrenheit |
Fertility of nutrient solution | 0-3, Protect your plants(0-1, the nutrient solution is too low, not suitable for plant growth; 1-3, the nutrient solution is moderate, suitable for plant growth; 3, the nutrient solution is too high, it needs to be diluted with water) |
MΩ Resistivity: | 50Ω-20MΩ, Indicates the purity of water |
Package Included: | 1 x Digital Water Quality Meter(With battery) ; 4 x Solution Powder ;1 x User Manual |
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