How long does the seal last inside the probe?

  Added by: administrator  Last edited by: 10k  Viewed: 671 times  Rated by 2 users: 7.50/10
Contributed by Nietzsche:

Something to note for all pH meters is the age of the meter; the gel seal inside the meter is only usually guaranteed to keep its seal for 2 years after being manufactured, although the gel seal may last much longer this.

Digital meters such as the pHscan 1 have the month and year of manufacture on the inside of the battery lid. I suggest checking it when purchasing as some hydro stores may have slow stock turnover.
  Last modified: 13:44 - Feb 25, 2001 

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faq:811 "How long does the seal last inside the probe?"