The Tecmen Hard Metal (TM16 Shell ADF820S filter) auto darkening helmet is a high end unit with the highest optical class 1/1/1/1. A large viewing are of 95 x 85mm with four arc sensors. Variable dark state shades of 5-8 & 9-13 and only weighing 490g.
| Optical Class 1 / 2 / 1 / 1 | |
| Viewing Area 95 x 85mm (3.74” x 3.35”) | |
| Cartridge Size 133 x 114 x 9mm (5.24” x 4.50” x 0.35”) | |
| Arc Sensor 4 | |
| Light State DIN 3.5 | |
| Dark State Variable Shade 6-8 / 9- 13 | |
| Shade Control Internal, Variable Shade | |
| Power On / Off Fully Automatic | |
| Sensitivity Control Low - High, By Infinitely Dial Knob | |
| UR/ IR Protection Up to Shade DIN16 At all times | |
| Power Supply Solar Cell. CR2450 lithium battery Change | |
| required. | |
| Switching Time 1/25,000 s. From Light to Dark | |
| Dark to Light 0.1 ~ 1.0s By Infinitely Dial Knob | |
| Low Amp TIG Rated & | 8805; 2 A / DC; & |
| Grinding YES | |
| Operating Temp -10°C ~ +55°C (14°F ~ 130°F) | |
| Storing Temp -20°C ~ +70°C (-4°F ~ 158°F) | |
| Total weight, incl Helmet 490g |