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Hello

Hello

can I help you ?

I have a PH 220 the probe has not been replaced for more than 3 years ... Is it still valid .... I carried out a calibration with a ph7 no worries everything seems OK ..... ..Thank you for your reply

If it works, keep it up! just check from time to time that the measurement is stable. This is the risk with an old probe!

It is not uncommon for probes to work for 5 or 6 years...

thank you Mr Michaud, I put it dry and before it was put into service at the end of April I would do a calibration, taking care to immerse it in the product for A MOMENT in PH4 ....

Don't leave it too dry...it's not very good

should I put it back in its original KCI bath?

It's better

ok thank you for everything and have a nice day

You are welcome, do not hesitate to contact us! Good day