Specification :

PH-901 Pen pH Testr WP
Range: 0.00¡ª14.00 pH,
Resolution: 0.01 pH,
Accuracy: ¡Ü¡À0.03 pH,
Temp. C: 5¡ª50¡æ, (ATC)
Calibration: Two-point at 6.86pH and 4.01pH (or 7.0pH and 4.01pH)
Features: Automatic switch-off function: After 8-10 minutes without pushing buttons, the meter will be switched off automatically.
Low battery£ºAs long as there is any display, the accuracy is guaranteed.
Battery Life: DC 4x 1.5V
Flug: Fixed electrode