Welding helmets with NexGen EQC® feature (4) sensors in a staggered design and soft touch controls. Smart View LCD provides fingertip control information with 3N1 multifunction capability (grind, weld, cut), and Intellisense technology allows unit to detect welds less than 5 amps. Clear-Vue light state allows you to keep helmet down at all times. Filter provides IR/UV protection. Includes replaceable lithium batteries, low battery indicator, and 800 working hours of battery life. Large window has 9 sq. in. of viewing area. The Journeyman® helmets features variable cartridge, single sensor, auto-off feature, and window size of 1 1/5" x 3 3/4". The Professional series also features Intellisense technology, sensitivity and delay adjustments, and (2) independent sensors. Window size: 1 3/4" x 3 3/4". Requires (2) AAA batteries.All Jackson EQCs meet ANSI Z87.1-2003 High Impact.