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Hanna Instruments buffers

dean

Member
Joined
6 Apr 2012
Messages
1,541
Location
Warrington, Cheshire
As part of what I do I have to keep records of water quality yep I know a waste of time and s ball ache but I’ve got a hanna pen and its needs recalibrating
So I went into the hanna website and omg what a price for 20ml sachets

So I’m asking you clever people if there’s an alternative to buying the hanna ones ?



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