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Hydrogen , Portable Hydrogen Meter Digital ABS  for Worker for Factory for

<ul><li>to measure the dissolved hydrogen content of hydrogen rich water and hydrogen water generators</li><li>Automatic temperature compensation function, each measurement range has a calibration point to make the measurement results more accurate</li><li>Use battery power supply, with low voltage prompt function, convenient battery replacement and easy operation</li><li>Made of  ABS material, durable and lightweight, easy to carry and daily use</li></ul>

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<br/><b>Specification:</b><br/>Item Type: Hydrogen TesterModel: FH-77<br>Material: ABS<br>Battery: 2 x 1.5V AAA battery not included<br>Uses: Aquariums, aquaculture, soilless culture, swimming pools and hot springs, school laboratories, chemical, food or beverage manufacturing, textile printing and dyeing, paper or pulp bleaching, printing, cooling towers, boilers, cleaning or sewage treatment, etc.         Range   ppb   0~1999ppb       ppm   0~1.99ppm       Resolution   ppb   1ppb       ppm   0.01ppm       Accuracy   ppb   ±10ppb       ppm   ±0.02ppm       Automatic Temperature Compensation   0 degrees Celsius ~50 degrees Celsius        Working Temperature   0 degrees Celsius ~50 degrees Celsius    <br/><br/><b>Package List:</b><br/>1 x Hydrogen Testerbattery not included<p>1 x Manual</p> <br/><br/><b>Note:</b><br/><div>1. When the voltage is too low, a low voltage prompt will appear.</div><div>2. When the range is exceeded, the reading will display "1".</div><div>3. When the measurement reading is inaccurate, lightly brush the metal  of the electrode with a soft brush.</div><div>4. When the electrode is dirty, 75% or 95% alcohol can be  to clean the electrode.</div><div>5. The electrode head must be kept clean and intact, so as not to affect the measurement results of the instrument.</div><div>6. When the instrument is not  for a long time, the dry battery in the instrument should be taken out.</div><div>7. The instrument has been calibrated before leaving the factory and can be  directly.</div><div>8. After each use, please wash the electrode with distilled water or clean water, and dry the electrode with filter paper.</div><div>9. Cleanliness is very important to the accuracy and service life of the electrode.</div><div>10. Do not touch the electrode part with your hands. The electrode should be suspended in the solution during measurement, and the electrode should not be in contact with the wall of the cup.</div><div>11. Do not remove the electrode parts by yourself or repeatedly plug and unplug the electrode parts if it is not necessary.</div><div>12. Do not drop accuracy instruments.</div><div>13. Please place the instrument out of reach of children.</div>

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