Item No.: G29B723
.Viewing Area:100x50mm 
.Cartridge Size: 110x90x9mm 
.Arc Sensor: 2 
.Light State:DIN4 
.Dark State: Fixed shade （9-13） 
.Shade control: external , variable 
.Power On/O: Fully Automatic
.Sensitivity Control: Low--Hight, by innitely dial knob
.UV/IR ProtectionDin 16
.Power supply:Solar Cell.battery change required.2xCR 2032 Lithium Batteries
.Switching Time: 1/25000S, from Light to Dark
.Dark to Light: 0.1~1.0s
.Low Volume Alarm: yes Low Amperage TIG: ≥5amps(DC),≥5amps(AC)
.Grinding Function:YES
.Low Volume Alarm:YES
.ADF self-cherk:YES