It is recommended to store the electrode in electrode storage solution and calibrate the meter regularly with calibration buffers (not included) – 
- IP65 Waterproof Housing
- Dual display with ATC
- Replaceable electrode*
- Pen size, easy to fit in pocket
- One touch auto calibration, 3 points
- Auto power-off
- °C/°F switchable
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 in the accessories section below.
Important to Know:
- 1. The electrode should be soaked in electrode storage solution before the first use.
- 2. The electrode should be stored with solution in the cap.
- 3. If unused for an extended period of time, the electrode needs to be rehydrated.
- 4. It is recommended to calibrate the meter regularly with calibration buffers.
Download 8689 Operating Instructions