2.First rinse the electrode with distilled water, and suck it with filter-paper. 3.Turn the meter on by pressing the key.
4.Immerse the ph meter electrode in the solution to be tested. 5.Wait for the reading to stabilize.
6.After use, rinse the electrode with water to minimize contamination. Turn the meter on by pressing the key. Replace the protective cap after use.
1.Immerse the electrode in pH 6.86(under the temperature of 25℃) standard buffer solution of phosphate, and gently shake it.
2.Allow the reading to stabilize and with a small screwdriver turn the calibration trimmer inside the battery compartment until the display shows is corresponding the calibration solution.
3.Immerse the electrode in pH4.01 or pH9.18 the standard buffer solution of borax.
4.After one minute, until the buffer solution value is corresponding the measurement temperature is obtained.
If the hydroponic pH meter can not be switched on or the display fades, To change batteries. Open up the battery case and replace batteries. Pay attention to the polarity of battery.
hydroponic pH meter is warranted from all defects in material and manufacturing for a period of one year from the date of purchase.
If during this period, the repair or the replacement of parts is required where the damage is not due to negligence or erroneous operation by user, please return the parts to either dealer or our offices, and the repair will be effected free of charge.
1.Can we get a discount?
Yes, more quantity, more discount.
2.Can I add my logo on your product?
Yes, you need to send us your artwork in high resolution, we will design a visual for your confirm.
3.What’s the MOQ ?
Usually speaking, we do not set MOQ since we want to do business with any business type, including retailer and wholesale.
4.What’s the lead-time ?
Normally it takes 3-5 working days after receiving payment.