Portable accurate oxygen concentration detector

Function

 1, Adopt 3 years imported long-life

electrochemical oxygen sensors.

2, This tester needs to correct

before use, please check the

correction instruction;

3, Please replace the battery if it's

low, or the numerical value will

show incorrectly;

4, This device will auto shut down

after turning on for 30 mins.

 Corecction instruction

1, Turn on the device, connect the

pipette filler with the tester and pinch for 2-3 times to

suck the fresh air; 3 mins later, if the numerical value

is not within 20.9±0.5, then the tester needs to correct.

2, Turn on the tester, simultaneously press "Key 1" and

"Key 2" for 5 seconds, then loosen the keys and enters

the correction function.

3, Correction: press "Key 1" to increase 0.1%, press

"Key 2" to decrease 0.1%, until correct to 20.9+-0.05,

then shortly press the left key to exit. Then it's in test condition.

Portable accurate oxygen concentration detector

Quality control:

• Every procedure has personnel inspection. 
• All the products must be tested and qualified before packaging.