ESAB 0700000491 SAVAGE A40 Yellow Auto-Darkening External Shade Adjustment Four Arc Sensor Auto Darkening 393

External shade adjustment between DIN 9 and DIN 13 and an optical class of 1/1/1/2. Delay and sensitivity can be adjusted from the inside
Four arc sensors for higher auto darkening response
Delay control enabling the welder to set how long the lens stays dark after the welding arc stops.
Sensitivity control is an adaptable feature useful when welding low amp TIG for better reaction to darker arc light
Delay control enabling the welder to set how long the lens stays dark after the welding arc stops. Short delay helps get the job done faster during tack welding, while longer delay is useful for high amperage welding