This mobile marten repellent works with the latest high-frequency technology (ultrasound) and requires no installation. The marten repellent can be used anywhere (e.g. in a car, carport, garage and house), ideal to protect e.g. cars parked for long periods. The optimum, maintenance-free service life of 12 months can only reached with high-quality batteries (2 x 1.5 V AA, not included). The device must be installed in such a way that water and dirt are prevented from getting into the housing. Can also be used for mice and other rodents. Range > 55 m² Frequency approx. 24 kHz (±15%) Sound pressure approx. 100 dB (± 20%) (ultrasound devices should have a sound pressure level of more than 100 dB(C) to prevent habituation (result of ADAC test). (Source de.wikipedia.org/wiki/Marderabwehr)) Operating voltage 3 V/DC Acoustic range > 6 m https://elecena.pl/product/18750459/fg022-mobile-marten-repellent-battery-powered 2021-06-10 https://elecena.pl/product/18750459/fg022-mobile-marten-repellent-battery-powered 2022-03-17 https://elecena.pl/product/18750459/fg022-mobile-marten-repellent-battery-powered 2023-03-19 https://elecena.pl/product/18750459/fg022-mobile-marten-repellent-battery-powered 2025-01-27