Grinding function with warning flash.Digital variable shade filter: 5-9 / 9-13.Cartridge size: 114 x 133mm.Viewing area: 100 x 83.4mm.Switching times:Light to Dark: 0.08 ms.Dark to Light: 0.1-0.9 secs.Four detection sensors offer wider detection of welding arc.Memory functions for Mig, Tig, MMA.Adjustable Sensitivity/Delay.Shell ‘B’ rated for impact protection.Polycarbonate lens 3025.