PH-901B Pen pH Testr (BNC+1m cable)
Range: 0.00—14.00 pH,
Resolution: 0.01 pH,
Accuracy: ≤±0.03 pH,
Temp. C: 5—50℃, (ATC) Calibration: Two-point at 6.86pH and 4.01pH (or 7.0pH and 4.01pH)
Battery Life: DC 4x 1.5V
Features: Automatic switch-off function: After 8-10 minutes without pushing buttons, the meter will be switched off automatically.
Low battery：As long as there is any display, the accuracy is guaranteed.