This device produces a high ultrasonic sound (approx. 23 kHz). Martens, mice, etc. find this sound extremely annoying and these animals will leave that place (most).
Ideal for installation into cars (as protection against martens), in houses against mice, etc.

Please notice the article "Mückenfrei" from the german magazine "Electronic Actuell Magazin" no.2/2003.

Fitting case: G020 - Case For Signals approx. 72 x 50 x 28 mm

Fitting accessories:
L001 - Piezo spherical dome tweeter with flare
P5123 - Mini piezoelectric tweeter for M094N