Digital PH Meter for testing water
It’s not only ideal for household or laboratory use, also suitable for testing pH balance of drinking water, pool, aquarium, food Project, RO system, Spa, or hydroponics.
► Measuring range: 0.00-14.00 pH
► Resolution: 0.01 pH
► Accuracy: 0.01 pH
► Batteries: 2X 1.5V LR44 (not included)
► Automatic temperature compensation: 0-50Centigrade(32-122It)
► Dimensions: 15×2.5×1.3cm/6×1.1×0.5 inch
► Net Weight: 52g/1.83 oz
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.
Clean the electrode with distilled water every time before and after use.
Be careful with the glass probe since it may be a little fragile when you use.
Remember to gently wipe it with a clean, soft cloth when you’re done before capping it again.
if the battery case is opened or if the battery is replaced, then need to recalibrate the device.