The NIM-511 is a device with dual sensor probes for measuring electric and magnetic fields in industrial environments from 300 KHz to 100 MHz. It provides the industrial plant manager and safety professional with an accurate and inexpensive solution for proving compliance with regulations that cover exposure to RF radiation. The EMF meter is extremely easy to operate and has a probe that contains sensors to measure both the electric (E) and magnetic (H) field components of an electromagnetic wave.