Ph Meters - Salinity Meters

[smithrc]

Hi all,

I've got a few "Koi Pro" Digital PH meters

Maidenhead sell them for £49.90 at the moment.

I've also got a couple of the salinity meters

Both shown here...
http/www.aquadistri.com/site_en/vijver.p...;product_id=179

All boxed (only opened to look at them) with instructions and batteries

Looking for £25 each... +P&P.

 

[smithrc]

2 PH meters left...

 

[smithrc]

Bump.

I've bought Calibration solutions for these now so they will be shipped out calibrated.
For £2.50 on top I'll add 30ml of each PH solution so you can check it regularly at home (PH4, PH7 and PH10 solutions)

Anyone that has a PH meter might like just the solutions as I've just done my own and it was quite a way out... PH7 was reading 6.3 and PH 4 was 3.2
£3 posted for just the solutions.