Iron Man Overvoltage Soldering Iron Workstation Monitor. Whenever a soldering iron, tweezers or other type tool touches the grounded pad of a board, the 3M Iron Man Monitor will alarm if overvoltage on the board is detected. High or Low selectable alarms: High sensitivity 0V to +/-5V. Low sensitivity 0V to +/-50V. Complete with universal 120/240Vwall adapter power supply and instructions. P/N 80-0009-1885-6. Learn More