Integrated grind control to fix lens shade at 3.5 in.
Extra inside and outside cover lenses, bandana and sport-pak style helmet bag
Magnifying cheater lens and hard hat adapter capable
Meet ANSI Z87.1 CAN/CSA Z94.3 and CE Certifications
1840 series: 1.8-in. viewing area height; 4.5 in. by 5.25 in. sized lens cartridge; externally controlled continuously variable 9 -13 shade control; TIG amp rating of 5 amps; uses two arc sensors for switching from light to dark; available in standard black or four graphic styles
2450 series: protected internal continuously variable 9 -13 shade control; variable sensitivity and variable delay; low TIG amp ratings of 3 amps DC and 5 amps AC; four arc sensors; available in standard black or four graphic styles