Extremely simple and effective electric field detector alerts user to the presence and strength of AC electric fields. Suitable for 50/60 Hz. Can distinguish 5 levels: <10, 10+, 40+, 80+, and 250+ V/m. Also provides audible tone whose loudness correlates with the strength of the electric field. Directional. Uses one 9V battery (not included).
Check for the presence of live wires, body voltage inducing electric fields, or broken circuits. Also, use it to demonstrate the effectiveness of electric field shielding. Compact 4.5 x 1.5 inches.