EXTECH EC500 防水ExStik使用® II的pH /电导率仪

HORIBA PH210 pH/ORP/温度 (°C/°F)计

HORIBA PH2000-S 台式pH/ORP 计 (With electrode; -2.000~20.000pH; 0.001pH)

HANNA SP83399-3N HI83399-02 多参数水表配件：仪表塑料键盘

HORIBA U52G(30m) 多参数水质检测仪 (pH, ORP, DO, COND, Salinity, TDS, Seawater, Temp, Turb (LED), Water Depth, GPS)

ZuoYeal WM-603 数字多参数（紫外-COD）传感器 ((0-100) Hazen)

HACH HQ430D 多参数测量仪 – pH、电导率、光学溶解氧、ORP

Triplett WQ120 PH/电导率/TDS/盐度计 (14pH, 20mS, 10ppt)

WTW MultiLine 3630 IDS Set G Multiparameter Portable Meter

HACH HQ4100 便携式万用表

Total Meter EZ-9908 pH/TDS/EC/Temperature Meter (0.00-14.00 pH, 0~19990 PPM, 0-19990 uS/cm, 0.1 - 60.0℃)