Numberone Digital PH Meter 001 PH High Precision PH Tester Water Quality Tester Pen 0001400 PH Measurement Range PH Meter for Drinking Water Aquarium Swimming Pool Hydroponics Blue

How to Use: 1. Remove the protective cap and protective film on the screen. 2. Turn the meter on by pressing the 'ON/OFF' key. 3. Immerse the pH meter electrode in the test resolution. 4. Sitr gently and wait until the reading stabilized. 5. Press the 'TEMP/CAL' button to get temp reading. 6. Clean the electrode with distilled water and turn off the meter after use. 7. Replace the protective cap. Specifications: Measure Range: 0.00-14.00 pH Resolution: 0.01 pH Accuracy: +/1 0.01 pH Temperature: 0-60 ?(32-140 ?? Power Supply: 2 Pcs 1.5V LR44 button cell Dimension: 155mm * 31mm * 18mm Weight: 50g / 1.7 Oz Maintenance: 1. Remember to replace the protective cap after finish using to avoid slow or unstable reading. 2. Immerse the digital meter into distilled water for a few hours if the electrode has been dried out. 3. Please replace the battery when the display value is fuzzy or unshown. Package Includes: 1x pH meter 1x User Manual Number-one brand products have been well tested before delivery, any problem please feel free to contact us through Amazon Email System and we will do our best to serve you.