I do not want to safe money on oxygen cells.The oxygen cells are not a good item to save money or to make compromises. They are one of the main components which support your life. In my opinion there is only one type of cell to buy: original Divesoft cells. And if they are out of stock, I would wait for them.
I do not want to make any compromise.
Buying "original" Divesoft cells is the safest way, no doubt. But I do not believe they are original. I guess Divesoft is buying them from Producer X, it's just relabeling. But who is producer X? Are Divegear's or Narked at 90's sensors from X as well?
If I can buy the same sensors X from anywhere else but Divesoft it's perfectly OK for me. Better than using old sensors and wait for Divesoft sensors.
I know NRC sensors are made by NRC, they are different to Divesoft sensors, so I forget about them.
But I do not have this information about other sensors, so I hope for your help.