It is recommended to store the electrode in electrode storage solution and calibrate the meter regularly with calibration buffers (not included)

Our 8689 pH meter does everything that the expensive models do at an affordable price. You get auto temperature compensation, 3-point calibration, ±0.05 accuracy, IP65 water resistant rating, dual display, and replaceable electrode.

* One electrode is included with purchase. Additional replacements are available.

Important to Know:

1. 1. The electrode should be soaked in electrode storage solution before the first use.
2. 2. The electrode should be stored with solution in the cap.
3. 3. If unused for an extended period of time, the electrode needs to be rehydrated.
4. 4. It is recommended to calibrate the meter regularly with calibration buffers.