PH-901 Pen PH Test WP

PH-901 Pen pH Testr WP Range: 0.00 to 14.00 pH,Resolution: 0.01 pH,Accuracy: +/- 0.03 pH,Temp. C: 5 to 50 C, (ATC)Calibration: One/point at 6.86pH (or 7.0pH)Battery Life: DC 3 x 1.5V
PH-901 Pen PH Test WP