Package: Includes 9 replacement membrane cap and 3 bottles of electrolyte solutoin, meeting the consumable needs of customers who frequently use the dissolved oxygen meter
How to replace the electrolyte: Pour out the old electrolyte from the membrane cap add new electrolyte, clean the membrane cap, then pour out the old electrolyte again, and finally fill the membrane cap with new electrolyte
How to replace a membrane cap: Tighten the membrane cap thread to the left, discard the old membrane cap, and then tighten the membrane cap thread to the right to install the new membrane cap. When replacing or removing a membrane cap, do not touch the bottom; only touch the membrane cap threads, otherwise the membrane cap may be damaged
Replacement frequency for the following parts: Modules: Replace when damaged or inaccurate; Electrolyte: Replace with new electrolyte before each use
Electrolyte precautions: Store away from light and at a low temperature; keep out of reach of children.