Fox Alloy Large Viewing 3.94'' * 3.66'' 1/1/1/1 Optical Clarity True Color Welding Helmet The sensors detect the brightness

The sensors detect the brightness of the weld arc when starting

This product is not sensitive to weld crack

3 / AS / NZS

heat flame resistant

it also can be used on weld forge and casting materials

Fox Alloy Large Viewing 3.94'' * 3.66'' 1/1/1/1 Optical Clarity True Color Welding Helmet The sensors detect the brightnessAuto Darkening Welding Helmetsthe Auto darkening welding helmet includes liquid crystal layers linked to 4 sensors, The sensors detect the brightness of the weld arc when starting, and darken the lens automatically. This happens extremely rapidly, in 1 25,000 second or less, thus protecting the eyes from damage. When the welder stops, the lens clears so the work can be checked without needing to raise the helmet. Reading Shade Ranges The Fox Alloy