DW-1 pen type oxidation-reduction potential (ORP) meter

Operating instructions:
*Remove the electrode protective cover, press the POWER button (red), and the LCD of the potentiometer should display;
*Immerse the electrode tip of the potentiometer into the solution, being careful not to touch the bottom of the solution beaker;
*Slowly stir until the electrode meter reading stabilizes, then read the value;
*After testing, clean the electrode with water to remove contamination; Use filter paper to dry and detect the next sample;
*When not in use, press the POWER button to shut down and put on the electrode protection cover.
*After automatic shutdown, press the POWER button twice when starting up;

matters needing attention:
*To ensure the accuracy of the measurement, after one week of use, wipe the platinum electrode with a cotton ball or clean it with cleaning solution;
*When the brightness of the potentiometer LCD display becomes dim, the battery needs to be replaced;

Technical indicators:
*Measurement range: ± 999mV
*Resolution: 1mV
*Accuracy: ± 10mV (20 ℃)
*Environmental temperature: 0-45 ℃
*Power supply: 2 × 3V button type batteries
Continuous working time:>150 (h)
*Automatic shutdown time: 10 minutes
*Dimensions: 147 × 28 × 15 (mm)
*Weight: 0.05kg