The Bohler Guardian 62 Auto Darkening Welding Mask is a professional-grade helmet that offers superior protection and comfort for welders of all skill levels. It features a large viewing area (62 x 98 mm) with True Color technology, which provides a clear and accurate view of the weld pool. The welding mask also has four arc sensors for fast and reliable darkening, and a grind mode that can be activated with an external switch. The Guardian 62 is made with a high-impact nylon shell and a comfortable headband with longitudinal and angular adjustments. It is also lightweight and well-balanced, making it easy to wear for extended periods of time. Features: High Impact Nylon Shell Comfort-Headgear with longitudinal and angular adjustments, smooth ratchet The ADF: Shade 4, 5-9/9-13, 62 x 98 viewing area, Best-In-Class-Clarity  True colour  4 arc sensors  CE classification 1/1/1/2  Grind mode via external switch  Light weight at 480 gram  2 years warranty