Contact magnetic wireless Hikvision DS-PD1-MC-WWS(H), frecventa de operare: 868 Mhz, comunicare bidirectionala, distanta de comunicare: 800 metri in camp deschis, tamper, baterie CR123A 3.0V inclusa (durata medie viata 2 ani), indicatori de stare ( LED), dimensiuni: 84mm x 25mm x 21mmGarantie: 24 luni