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 Four arc sensors for higher auto darkening response Sensitivity control is an adaptable feature useful when welding low amp TIG for better reaction to darker arc light Adjustable sensitivity control for TIG welding in the low rim range for better adjustment to the arc
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