Portable Hydrogen-Rich Pen PH Meter/ORP/TEMP 4 in 1 Test Pen

1. Display: LCD digital display
2. Battery: 3x1.5LR44 button battery (delivered with battery)
3. Display size: 3.3x2.4 cm
4. pH test range: 0.01-14.00pH
5. Resolution: 0.01pH
6. ORP test range: 990-1008mV
7. Resolution: 1mV
8. H2 test range: 0-2400ppd; 0.001-2.400
9. Resolution: 2ppb; 2ppm
10. Temperature test range: 0.1-60.0 degrees Celsius 32.0-140 degrees Fahrenheit
11. Automatic shutdown: 5 minutes
12. Waterproof rating: IP67
13. Dimensions: 18.3x3.7x3.7 cm
14. Net weight: 98 grams
15. Matters needing attention: Every time you use it up, you must clean the electrode