Ebay PH meter??

[platax88]

So i am looking for a PH meter and decided to check ebay... I found these dirt cheap! do you think they will work? be accurate?

What do you guys think?? Does anyone have one for sale at a good price?


http://cgi.ebay.com/New-pH-Meter-Aquarium-Swimming-Pool-Water-Tester-PH-3_W0QQitemZ7630740163QQihZ017QQcategoryZ58191QQrdZ1QQcmdZViewItem

http://cgi.ebay.com/Digital-pH-Meter-Aquarium-Swimming-Pool-Water-Tester-R9_W0QQitemZ7775715428QQcategoryZ3212QQrdZ1QQcmdZViewItem

Thanks!!!

[TitansFan]

That first one looks just like my TDS meter. For $13 it would be worth a shot. You could always use a good ph test kit to compare. I would keep an eye on the calibration though. I don't know how well they retain calibration. Maybe need some calibration packets... Of course the old stand by is pinpoint meters. My aqua jr has a ph probe so I now use it.