Position: Index > Unclassified >

Ultrasonic Pest Repeller I

2017-09-08 11:39  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


An NE555 timer is used to generate an ultrasonic signal in the 20- to 65-kHz range. The speaker is a small piezo
Ultrasonic Pest Repeller I

electric tweeter with response above 20 kHz. These frequencies are said to be annoying to rats, mice, and insects.









Reprinted Url Of This Article:
http://www.next.gr/audio/ultrasonic-circuits/ultrasonic-pest-repeller-i-l14478.html