TIG welding mask technical parameters

RD1001 argon arc welding welding mask technical parameters: 1. Dimensions: 110X90X9mm (4.33 "X3.54" X0.31 ") 2. Windows: 94X41mm (3.70" X1.62 ") 3. UV / IR transmittance : UV: 313nm-365nm <0.0003% Infrared: 780nm-1300nm <0.027% 1300nm-2000nm <0.085% 4. State: shading number 3 5. Shade number adjustment range: 9 to 13 6. Power: Lithium battery dual power supply 7. Power switch: Automatic 8. Switching time: a). Response time (light to dark): 1 / 25000s (at room temperature) b) Delay time ): 0.10 ~ 0.50s 9. Sensitivity: High 10. Operating temperature: - 5ºC + 55ºC 11. Storage temperature: -20ºC + 70ºC 12. Weight: 420g