Identifies Proper Distance From Radiation Source What this meter lacks in resolution it makes up with ease of use and very low cost. Will measure ELF/ VLF magnetic fields in the frequency range of 20- 10,000 Hz, with a minimum sensitivity of 0.25 mG. Laboratory tested and documented for accuracy. Three LED lights signal field strength: 0- 2.5 mG ("safe")2.5- 7 mG ("caution")8 or more mG ("danger") Single axis sensor, on/off toggle switch. Useful for preliminary surveys of home, car, or office. One fresh 9V battery required. Very popular for paranormal work too!Price: $29.95
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