- Joined
- Sep 7, 2019
- Messages
- 589
- Reaction score
- 329
Hopefully this pandemic is going to be gone by then! And availability would be not an issue..The reference solution if not open they say 1 year but could also be longer. The probe will notify you when it needs to be changed, but they are recommending to buy a new one when you receive the notification and not buy one ahead time and store it it will expire just like PH probe.