Milwaukees most affordable pH 600, full range pH meter with a range from 0.0 - 14.0 ph. Milwaukees economical testers are easy-to-use and low cost instruments to measure quick and reliable pH, EC or TDS values. Measuring electrical conductivity is the best way of checking the amount of salt or dissolved solids (TDS) in water. Milwaukee provides you with a range of pocket testers that will allow you to measure from very low to very high conductivity solutions. Batteries included.
Posted by Unknown on 27th Sep 2012
This product is almost impossible to calibrate.
It has a tiny hole on the back where you insert a tiny screwdriver (not supplied). In order to see the slot on the screw you must hold a flash light in one hand, the meter in your second hand, and the screwdriver in your third hand. It requires a turn of about one hundreth of and inch to move it from a reading of 7.5 ph to about 5.5 ph. After about half an hour of going back and forth, I think I got it to about 6.5 ph. It also requires an expensive calibration solution which you throw out after each use.
Each time I put it in the solution to see if it was calibrated properly it gave a different reading. Save your money.
Posted by Farmer on 11th Jul 2011
The pen overall is worth the money...but don't drop it in your water or mix....the calibration hole will let water in and your gonna be looking for a way to dry it out and hopefully it will work again. In my case i was able to get it to work again.