Allegro 9904-35 Replacement Variable Shade 9-12 Auto Darkening Lens Kit (For use w/ 9904-WB)
Made for all welding processes including TIG and TIG pulsing. Lenses feature both optical and magnetic arc detection system, ensuring the filter will not open (turn from dark to light) even if the sensors become blocked. Designed with the capability to detect light and magnetic waves that occur during welding. Optomagnetic sensors can be adjusted from 0 to 6 feet in range. Both are solar powered with dual sensors. Kit includes auto-darkening welding filter and mounting frame.
Use w/9904-WB Deluxe Supplied Air Shield and Welding Helmet (Black Shield)