ph testers****

I bought a cheap Rapitest from the local Agway ($20). Although not perfect, it seems to work OK. I think the key to accurate readings is to make sure you take a piece of sandpaper and clean up the surface of the probe before use.
 
steve1214 said:
do u like it? wat calibration and storage solutions do i need to buy with it?
Click to expand...
i have also had this one. worked great. all you need is 7.0 solution and honestly i would check the calibration on it weekly and it almost never needed to be changed.
ots got a tiny screw which you turn to set the calibration very simple and not many places for it to go wrong. you dont need storage solution plain water is fine,as long as the probe end stays wet you should be fine.
 
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