Portable For Wide Use : This pen-type instrument has a compact size, weighs only 1.76oz(50g) that is perfect for outdoor or household use. Ideal for household or laboratory use; Suitable for testing pH balance of drinking water, pool, aquarium, RO system, Spa, or hydroponics; Appropriate for wide range of applications. Great for kids school science experiments. Test different bottled waters or even your homemade sauerkraut.
FAST AND ACCURATE :Ensure your pool, general hydroponics PH or even drinking water has a perfect PH balance and safe for use with the Tester precision PH accuracy. The tester has a sensitive electrode sensor to read accurate pH levels.
Auto Calibration :The PH meter has an auto temperature compensation feature that adjusts to water temperatures and water quality to give PH readings almost instantly. As well, you can calibrate the tester with one touch button using only 4 and 6.86 buffer powder.
AUTOMATIC TEMPERATURE COMPENSATION :No more need to take care about the temperature of testing liquid, as PH meter has built in (ATC) automatic temperature compensation, so that it can accurately determine PH value of the sample at any temperature in a range of 0 C - 80 C (32 F - 176 F).
Operation:
Remove protective cap.
First rinse the electrode with distilled water and suck it with filter paper.
Turn the meter on by pressing "ON/OFF" key.
Immerse the pH meter electrode in the solution to be tested (should not be over the immersion line).
Stir gently and wait around 30 seconds till the reading stabilizes.
After finishing, clear the electrode with pure water, turn the meter off by pressing "ON/OFF" key.
Always replace the protective cap after use.
Calibration:
1.Turn on PH meter
2.Disolve each buffer solution in 250ML of distilled water
3.Immerse the electrode into the PH 6.86 solution,(under the temperature of 25)
4.Press the "CAL"(calibration)button for 5 seconds and release
-Display will start flashing 6.86
-Wait until the display stops flashing.
Rinse the electrode with distilled water and dry it with filter paper.
1. Immerse the electrode in PH 4.00 solution,
-Press"CAL"button for 5 seconds, then press and release immediately second time
-Reading will start flashing 4.00
-Wait until display stops flashing
Rinse and dry the electrode with distilled water as before.
6.Place the meter back to the buffer solution to test calibration. If incorrect, please repeat the calibration
7.If approximate PH of your test solution is known to be above 7.0,calibrate the meter using 6.86 and 9.18 solution. To do this, please follow the calibration chart, The third step is the calibration method for 9.18 point.
What's in the box
1 x PH Test Pen
