JPB-70A Portable Digital Pen Dissolved Oxygen Meter Dissolved Oxygen Meter Water Quality Tester Dissolved Oxygen Detector
Packing List: Note:
2. The electrode filling solution of this product cannot be transported. You need to buy it locally. The name of the electrode filling solution is: dissolved oxygen electrode filling solution. The JPB-70A dissolved oxygen meter electrode can basically use an electrode filling liquid suitable for dissolving the electrode of the oxygen measuring instrument.