The AZ-ES009 Liquid Crystal Automatic Welding Mask is designed to protect the eyes and face from sparks, molten metal splashes and harmful radiation under normal welding conditions.
The self-darkening filter automatically switches from light to dark during arc welding preparation and returns to light when welding is finished.
The AZ-ES009 self-darkening welding mask is supplied assembled. However, before use, it must be adjusted according to the user's needs.
Before each use check:

• Check the battery surfaces and contacts and clean them if necessary.
• Check that the battery is in good condition and correctly installed.
• Check the mask for damaged components.
• check the presence of protective elements, clean any dirt covering the sensors on the front of the lens

The BY433E-CENTAURY, Almaz AZ-ES009 self-adjusting welding jig must be stored in a dry and cool place, away from light and it is necessary to remove the battery before a long period of storage.
The self-darkening welding mask is not suitable for laser welding.
The mask is compatible with MMA, MIG-MAG, TIG welding technologies.
Use the mask only at the following temperatures: - 5°C ~ + 55°C. Storage temperature: -20°C ~ + 70°C.