Hobart 770700 Auto-Darkening Welding Helmet
Auto-Darkening Welding Helmet, gloss black, 9-13 variable shade. ANSI Z87.1-2003, CE and CSA Certified,  1/10,000 second switching speed.  Weld / grind mode switch; auto on / auto off.  Uses one replaceable CR2330 Lithium Battery.  Low battery indicator.  Adjustable sensitivity and delay controls. 3.82" x 1.81" (97mm x 46mm) viewing field. 2 independent arc sensors.