4 в 1 портативный инструмент для заточки ножей многофункциональный металлический открытый спортивный стальной нож точилка
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item | PH Meter Digital PH Tester 0.01 High Accuracy PH Meter for Water 0-14 PH Measurement Range for Drinking Water Pool Aquarium |
Measuring range | 0.00-14.00 pH |
Resolution | 0.01pH |
Accurancy | 0.01pH |
Battery | 2X 1.5V LR44 (not included) |
Dimension | 15x2.5x1.3cm/6x1.1x0.5 inch |
Probe Type | Precision glass bulb electrode |
Package includes | ► 1 x PH Meter ► 2 x Calibration packets ► 1 x User's manual |
Warm Tips | It STEP 1: Turn open pH meter, Clean the electrode in distill water It STEP 2: Immerse the electrode in pH 6.86 standard buffer solution It STEP 3: Press the "CAL" button. Wait until the display digital is 6.86pH and steady It STEP 4: Clean the electrode in distill water and dry it, immerse the electrode in Ph 4.00 standard buffer solution It STEP 5: Press the "CAL" button. Wait until the display digital is 4.00pH. Then complete pH 4.00 calibration It STEP 6: Clean electrode and dry it, put the meter into PH 9.18 standard buffer solution. Check if reading is correct between 9.17-9.19pH |
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