A user is experiencing unexpected readings from a voltmeter when touching it to their arm, despite not being in contact with any electrical current. The voltmeter, a commercially available pen tester, is set for household use and not on ohms. Other participants suggest that the readings might be due to the nature of voltage measurement, which requires two points, and that the voltmeter could be measuring a static charge on the user's body. They mention the possibility of the device functioning as a non-contact voltmeter, which could interpret the arm as one plate of a capacitor, thus detecting a charge. The user insists on the peculiar nature of the readings, noting that the volt alarm activates strongly upon contact with their skin, and expresses a willingness to demonstrate the phenomenon in Southern California. The discussion highlights confusion about the voltmeter's operation and the nature of electrical measurements.
