Professional pH Water Quality Tester Meter

Why is pH level important?
pH is an important measurement of the quality and safety of water. The range goes from 0 to 14, with 7 being neutral. Water with a pH < 7 is considered acidic and with a pH > 7 is considered alkaline. Processed foods like yogurt, fish, and cheese are typically more acidic while vegetables like beetroot, capsicum, and kale are high alkaline.

The normal range for pH in surface water systems is 6.5 to 8.5 and for groundwater systems 6 to 8.5. Rain water has a pH of 5.6 or lower (slightly acidic). Pollution and other environmental factors can change the pH of water. Excessively high and low pHs can be detrimental to humans, animals, and the entire eco-systems. Pure water has a pH of around 7 (neutral), but these days it’s rare to find water in this pure state! When water is below a pH level of 7 it could contain iron, copper, lead, or zinc from plumbing and various other metal fixtures, and can be corrosive. It will have a bitter and metallic taste to it. To ensure you’re drinking the best water possible, a pH test should read 7 or more.

Please read through instructions carefully before using this device to ensure the correct reading.

How To Calibrate The Device Correctly In 3 Steps
Follow these instructions to reset and recalibrate the device.

Use one bag of powder dissolved in 250ml pure water. When you need to do the calibration, take some solution and the rest can be sealed and preserved for 1 month.

Step 1
Turn on the machine, put the PH818 in pure water, clean it and wipe it with a cloth. Press and hold the calibration button, put the machine into the debugged PH4.00 solution, stir it and let it stand for a few seconds until the screen says "PR5”.

Step 2
When the machine reads 6.86, take it out, clean it in pure water, wipe it with a cloth, put it into the debugged PH6.86 solution. Stir it and let it stand for a few seconds until the screen says “PR5”.

Step 3
When the machine reads 9.18, take it out, clean it in pure water, wipe it with a cloth, and put it into the debugged PH9.18 solution. Stir it and let it stand for a few seconds until the screen says “PR5”.