Detector de fum wireless Hikvision DS-PDSMK-E-WE, frecventa operare: 868MHz, criptare: AES-128 Encryption, transmisie in camp deschis: 800m, alarma sonora: ≥ 85 dB @ 3 m, alimentare pe baterie ( Non Replaceable CR17450 x 1pcs), durata medie a bateriei in standby 10 ani, montaj pe tavan, dimensiuni