Operation Temperature: -5 degrees C 55 degrees C. 100mm x 53mm(4" x 2"). Knob for you to control easily.Can be selective by switch. Switch for you to control switching time from darkness to light. Outside darkness shade level knob.
The item "FMTP 4-sensors Auto Darkening Welding Helmet Mask DIN 6 to 13 with big view" is in sale since Saturday, June 24, 2017. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Welding & Soldering Equipment\Welding Equipment & Accessories\Welding Protective Gear\Welding Helmets". The seller is "etoolstar" and is located in Claremont, California. This item can be shipped to United States.