This kind of tiny milvents is design for light guide requirement and combine a vent on it.

The Patent design of vents is integrated on light guide and it will save the cost on your products where you also have a vent.

M4 Light Guide Milvent:

1. Light Guide Function

2.Grade: IP67.IP68,IP69K

3.waterproof,but air can go through,

4.equalize the pressure inside&outside.

5. material:Plastic

Main advantages :

1, reduces the pressure on the hermetic of the device case by the

fast pressure balancing;

2, protects the components inside from water, cleanser and other

low-surface tension liquid;

3, avoids water vapor or harmful battery gas being saved inside of

the device case;

4, simple installation ,long working time.

5. Save cost and tiny sizes with big function