Item No.: G29B421
.Viewing Area:98*43mm                   
.Cartridge Size:110*90*9mm                   
.Optical Class：1/1/1/2                
.Arc Sensor:2                
.Light State:DIN4                
.Dark State:Fiexd Shade5～8/9～13                
.Shade Contorl:External,Variable                
.Power ON/OFF:Fully Automatic                
.Sensltivity Contorl:Low～High,by infinitely dial knob                
.UV/IR Protection:DIN16                
.Power supply:Solar Cell.battery change required.                
.1*CREE 2032 Lithium Batteries                
.Switching Time:1/25000S,from Light to Dark                
.Dark to Light:0.1-1.0S by infinitely dial knob                
.Low Amperage TIG:≥5amps(DC) ≥5amps(AC)                
.Grinding Function:YES                
.Low Volume Alarm:YES                
.ADF self-cherk:YES