Waterproof, low power consumption, replaceable electrode, automatic temperature compensation and automatic switch-off feature after 10 minutes of inactivity to save battery power.
- Measuring Range: 0.10-14.00pH
- Resolution: 0.10pH
- Accuracy: ±0.10 pH
- Operating Temperature: 5-50°C (ATC)
- Calibration: 2 points
- Power Supply: DC 4 x 1.5V (button battery)
First pen had an issue during calibration, called the Growace team, they replaced it right away, and the new one has been working great !
This PH pen meter comes with a sample of calibration fluid and does the job so far, no buffer fluid included to re-calibrate the meter.
delivered on time and is very accurate.
Good stable economical Ph pen