Healthy Wiser pH meter #healthywiser

So I got the opportunity to review the Healthy Wiser pH meter p n. The pen can be use to test the pH on a number of different liquids. The pen come with three packets that are used to calibrate the p n. It comes with a 6.86, 4.00 and 9.18. You only really need to use the first two packets when calibrating the pen. The 9.18 is if the approximate pH solution is known to be above 7.0, you use this then. To start off calibrating the pen, you must have 4 bowels of 250ml distilled water. In three of the bowels (depending if you need to do the third packet) you mix the powder packets in. To start, you place the pen in the 6.86 first. The pen is first turned on before placing in solution. Once in the liquid you push the calibrating button for seconds. Now that is how the directions are written so your guess is as good as mine when it comes to seconds. I am not sure is the mean 3 or 10. Anyway I held the calibrating button down until the screen flashed. Once the screen flashes you are to let the pen sit in the liquid till it quits. Once done, you rinse the end in the fourth bowel of plain distilled water. After you are supposed to dry the electrode with filter paper; which is not provided with the pen. Next you go to the 4.00 solution. While pen is on, place in liquid and holed the calibration button for 3 seconds then press and release immediately. Once it is done flashing, rinse and dry like before. Then you can do the last solution following the same instructions. 

When I tried to calibrate this pen, I had nothing but trouble. I would do the first solution as instructed but had issues getting it to flash, or it would somehow skip the 6.86 all together and go to 4.00. Same with trying to calibrate in the 4.00 solution. I would press the calibrating button like I was instructed but it didn't either flash or somehow 7.00 would appear on the screen. I attempted to try and calibrate this pen several times with no good outcome. My opinion on this device is that it sucks. Maybe someone out there has tried this device and had a better outcome. From my experience, I would not recommend. I received this item free or at a discounted price in exchange for my opinion. 

http://www.amazon.com/HealthyWiser-Hydroponics-Calibration-0-00-14-00-Measurement/dp/B018J40IKU/ref=sr_1_14?ie=UTF8&qid=1453326238&sr=8-14&keywords=healthywiser