Electromagnetic field meter

This is a low cost meter for detecting and measuring electromagnetic fields.
The Electro Detector cost about $30. and works well.
The manual states, Another Educational & Entertaining Product from:

Unusual Discoveries
1150-B E. Hallandale Beach Blvd.
Hallandale, Fl 33009
Phone 954-454-1880




Magnetic Levitation - Science is Fun