pH probe DIAMETER?

[LoneStar]

What is the diameter of a standard pH probe? Is there a standard size or does it range from manufacturer? I'm at work making a effluent box and forgot to get the probe size(need to order one).... :roll

I'm thinking 1/2". But I may make the hole larger just in case...

[JimD]

My Pinpoint probe measures slightly less than 1/2". 29/64ths to be exact.

[LoneStar]

Thanks Jim! :)

[hobogato]

mine is a milwakee and it is also right at 1/2"