... for use in cars, houses and attics. Generates enormously loud pulsating ultrasonic sounds. ... generates aggressive ultrasonic sound not audible for the human ear, but perceived as exceptionally annoying by martens and is thus avoided. Fitted in the car's engine compartment. Ultrasonic marten repeller for use in cars, houses and attics. Generates exceptionally loud, pulsating ultrasonic sounds using a special dome tweeter. Technical data Operating voltage 11 - 15 V/DC Power consumption: < 2 mA Frequency approx. 23 kHz Dispersion angle approx. 140° Transmission power max. approx. 100 dB (± 20%) Dimensions approx. 72 x 50 x 28 mm (without mounting brackets) https://elecena.pl/product/18825471/m100n-car-ultrasonic-marten-repeller 2021-06-16 https://elecena.pl/product/18825471/m100n-car-ultrasonic-marten-repeller 2022-03-16 https://elecena.pl/product/18825471/m100n-car-ultrasonic-marten-repeller 2022-05-16 https://elecena.pl/product/18825471/m100n-car-ultrasonic-marten-repeller 2023-04-17 https://elecena.pl/product/18825471/m100n-car-ultrasonic-marten-repeller 2024-05-05 https://elecena.pl/product/18825471/m100n-car-ultrasonic-marten-repeller 2024-06-01 https://elecena.pl/product/18825471/m100n-car-ultrasonic-marten-repeller 2025-04-03