Weller WXA2010N 2 Channel Power Unit is the best set for hot air tasks with its simultaneous operation of 2 soldering tools.In the WXA2010N, the amount of air can be controlled using the rotary knob. The Weller WXA2010N 2 Channel Power Unit has 3 separate operating modes, Operating mode level 1 the air flow continues for as long as the button on the hot-air iron or foot switch is pressed. Operating mode level 2 if the button is pressed once, the hot-air flow continues for between 0 and 300 seconds, stopping at the end of the set time. Operating mode level 3 the WXHAP 200 switches on with one press of the button and off with the second press. Weller WXA2010N is ESD safe and features equipotential balance, unit data traceability, and intelligent tool detection.