Features of Oxygen O2 Tester Meter:
1.Portable monitor for detect O2, temperature .
2.Respond quickly, detect precisely, sound,light two types alarms indication.
3.Electrochemical principle measuring,high accuracy.
4.Rechargeable battery,USB powered.
5.Large LCD screen backlight display, can read in dark.
6.Battery indication,alarm value set,volume adjustable.
7.C degree / F degree unit switchable.
8.Widely used in factory, home, office, and public place.
