Warm Tips:
- Not use the PH meter for a long time will cause the the battery acid leakage, if you found this problem, please take photos and let us know after receiving the item in 7 days. We will resend it FOR FREE or refund!
- Please read the instructions before use, use correctlly could help you use it more easily and abvoid inncorrect outcome.
- Please accroding the manual to maintain the product.
- Please pay attention to the positive and negative poles when installing the battery to ensure normal use.
