Offers excellent neck and head protection Made using lightweight materials for excellent comfort and performance Designed for use with cartridge respirator Easy lock/unlock replacement cartridge Features state-of-the-art Blue Lens Technology, allowing the user to experience true colour vision 4 arc sensors provide amazing clarity, enhanced definition, and reduced eye fatigue Fully digital operation: shade, sensitivity, delay and weld/grind control Adjustable sensitivity and delay controls Wider viewing area, ideal for difficult work angles Memory function allows the operator to store different shade, sensitivity and delay options All controls are internal for maximum protection Solar and battery operated Easy auto-darkening filter and cover plate removal and installation Automatic power control Complete with grind mode / grinding warning Low battery warning is standard Comfortable lock/unlock push-and-twist ratcheting head gear adjustment Meets ANSI Z87.1 and CAN/CSA Z94.3 standards Colour Black/Orange Dark State Variable 5-9/9-13 Dark to Light Response Time 0.1 s - 0.9 s Light State 4 Manufacturer's Warranty 2 Years Optical Clarity 1/1/1/2 Shade Control Internal Switching Time 0.08 ms Viewing Area 3.94"" L x 3.28"" W