الوصف

PH***2 Pen pH Testr WP Range: 0.*0—*4.*0 pH, Resolution: 0.*1 pH, Accuracy: ≤?0.*3 pH, Temp. C: 5—*0℃, (ATC) Calibration: Two-point at 6.*6pH and 4.*1pH (or 7.0pH and 4.*1pH) Features: Automatic switch-off function: After ****5 minutes without pushing s, the meter will be switched off automatically. Low battery：As long as there is any display, the accuracy is guaranteed. Battery Life: DC 4x 1.5V Flug:Changeable electrode