-40%
VLF receiver module. Hear tweeks, whistlers, earth electrical noises, bees
$ 13.2
- Description
- Size Guide
Description
VLF receiver module. Hear tweeks, whistlers, earth electrical noises, bees, insects.Detects earth's electrical field noises.
20 Hz - 20 KHz.
Connect to any tape recorder or digital audio recorder. Connect a 1.5 volt battery, and a short wire antenna ( about 4 feet long) and you will hear all kinds of electrical signals. Take this to a place away from power lines at night, to hear tweeks, whistlers, and other earth-near space electrical sounds.
4 wire connection: (-) black, (+) red, (antenna) yellow, (output) white.