YT-73921 Auto-darkening welding helmet with manual adjustment

Designed for individual category II protection of eyes and face from mechanical damage and light radiation. Has increased mechanical strength.
Made from polyamide PA66 and fitted with a headband with a polypropylene strap with a cotton lining
The welding filter adjusts the shade level in the range 9-13. Protected by a polycarbonate viewing lens
Has a WELD (automatic brightness change) / GRIND (stays in the light state) switch
With the side knob of the mask the shade level can be set in the range 9-13
The DELAY switch changes the filter response time: FAST / MIDDLE / SLOW
The SENSIVITY switch adjusts sensitivity (filter trigger threshold). The 30-50% range is recommended for most welding work.
Power supply: 2 lithium CR2450 batteries. Has LOW BATTERY low charge indication
Has a self-test function - TEST button
Filter response time: 1/25 000 of a second
Operating conditions: from -5 to 55C
Contents: operating instructions