PH-903笔式防水pH计(New) 测量范围： 0.00—14.00pH, 分辨率： 0.01pH, 精度： ≤±0.02pH, 温度范围： 5--50℃(ATC) 标定： 二点定位校准标定，6.86pHand4.01pH(or7.0pHand4.01pH) 特点： 低功耗；电池电压过低对测量精度无影响；自动关机。 PH-903PenpHTesterWR(New) Range: 0.00—14.00pH, Resolution: 0.01pH, Accuracy: ±0.02pH, Temp.C: 5—50℃,(ATC) Calibration: Two-pointat6.86pHand4.01pH(or7.0pHand4.01pH) Features: Automaticswitch-offfunction:After10minuteswithoutpushingbuttons,themeterwillbeswitchedoffautomatically. Lowbatteryalarm:Ifthebatteriesarelow,thedisplaywillflash,towarnusertochangebattery. Aslongasthereisanydisplay,theaccuracyisguaranteed. BatteryLife: DC4x1.5V Flug:Fixedelectrode