THE KIWA EARTH MONITOR

Available from: C. Crane Co. 1-800-522-8863

The Kiwa Earth Monitor is an ELF, (Extremely Low Frequency) receiver
that tunes 50 Hz to 15 kHz. This receiver is ideal for listening to
ñWhistlersî, ñSphericsî and other natural radio signals from planet
Earth. The Earth Monitor features a remote field probe for optimum
reception. It also includes a variable frequency bandpass filter for
elimination of interference and noise. Headphone and record outputs are
included. Battery operation is provided by (6) ñAAAî batteries,
included. Remote field probe comes with 20 feet of coax.

Item # VLF ..... $149.95 

Can be ordered froom the following url.

http://www.ccrane.com/natrlrad.htm