Easy and convenient dissolved hydrogen meter.
The M687MD-XF allows you to easily check the concentration (ppm) of the popular hydrogen water. Instead of the expensive membrane polarographic method, it measures the hydrogen concentration of nearly neutral aqueous solutions using a cost-effective reduction potential method.
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■Measurement Method ●Connection Connect the main unit and the probe. Carefully remove the green protective cap from the tip of the probe without touching the tip with your hands. *Please do not touch the tip of the probe with your hands as it may cause malfunctions.* ●Power ON Turn on the power and immerse the tip of the probe in tap water or pure water. Confirm that the LCD display shows a value of 0.00 ppm or lower. *If the display value does not reach 0.00 ppm or lower after immersing the probe for more than 3 minutes, press the flash switch to the ZERO side for several seconds until it shows 0.00 ppm or lower.* ●Reading Immerse the probe in the measurement sample (such as hydrogen water) for a few minutes, wait for the display value to stabilize, and then read the value. If the value does not stabilize, gently shake the probe while it is still immersed in the sample to stabilize it. ●Drying After the measurement is complete, wash the probe with tap water, lightly shake off excess water, and then store it with a small amount of purified water in the protective cap.
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Product Composition Main unit, probe for M687MD-XF (with plug cord), 006P alkaline battery, storage solution (purified water) 50ml, instruction manual, warranty, dedicated carrying case
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