Nedis - carillon de détecteur de mouvement pour la sécurité de la maison 8 sonneries signaux avec lumière et son ALRMMW20WT

? Battery operated (6x AA, not included) for maximum flexibility in placement ? Low power usage of less than 300 uA to last up to a year on batteries ? Adjustable sound volume up to 85 dB to fit to each situation ? Wide detection range to notify you on each visitor ? Wireless communication on 433 MHz over a distance of over 80 meters ...