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Customer Service
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Ensuring a secure and seamless transaction experience is paramount to us. We offer a variety of trusted payment methods to cater to your convenience and peace of mind. Rest assured, your financial information is safeguarded with the highest encryption standards. Choose from the following secure payment options:
Your trust and security are of utmost importance to us. Should you encounter any issues or have inquiries regarding payments, feel free to reach out to our dedicated customer support team for assistance.
Accurate PH meter
How to Calibrate
1. Before calibration, add the pH4.00/pH6.86/pH9.18 buffer powder into the beaker with 250ml of distilled water, then stir until the powder has completely dissolved.
2. Press the ON/OFF button to turn on the meter.
3. Put the electrode into pH4.00/pH6.86/pH9.18 standard solution, waiting for the readings to stabilize (usually 5~10 Seconds).
4. Press and hold the CAL/ATC button and release after 6 seconds.
5. Until the readings of pH4.00/pH6.86/pH9.18 are no longer flashing, the calibration of pH4.00/pH6.86/pH9.18 is
Auto Temperature Compensation
You have the right to cancel your order within 14 days without giving any reason.
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