ARM7011-W2-868 is a wireless alarm relay designed for the integration and control of devices in Dahua anti-theft systems. It uses 868 MHz two-way communication with a range of up to 1200 meters in open field, Frequency Hopping technology and AES128 encryption for secure transmission. It features NO/NC input and output, Tamper protection, a control button and an LED status indicator. It supports cloud updates and is made of polycarbonate and acrylic, with wall mounting. Dahua