An external field will induce an electric field within our bodies. In this sense, our bodies act as antennas picking up fields from electric blankets, alarm clocks, powerlines, and just about everything connected to a source of electric power.
Delicate biological cellular processes (like brain function and heart muscle contraction) operate on the scale of microVolts to milliVolts. Body Voltage can exceed several Volts in some cases.
The Body Voltage Meter quickly and easily reports this induced AC body voltage. Simply hold the sensor handle. Notice how your body voltage varies as you move about the room, as you change position (standing vs lying down, for example) and it also depends on what you are wearing.
The Body Voltage Meter is a great way to test the effectiveness of your static discharge (ESD) devices and can be used to measure the AC voltage build up on static producing surfaces. Large digital readout is easy to see and sensitive down to 1 mV. Will help you detect irritating voltage sources which may not otherwise be obvious. Comes complete. Uses 1 9V battery (not included). Calibrated for 40-500 Hz.