Dahua Dhi-ara12-w2 Wireless Siren,

Wireless Connectivity: It integrates with the Dahua AirShield system for flexible installation without wiring. Audible Alerts: The siren produces a high-decibel alarm to provide immediate awareness of potential security breaches. Two-way Communication: It uses frequency hopping and two-way communication technology to ensure stable communication. Additional Features: Signal strength detection. Low battery alarm. Temperature measurement. Cloud update and automatic recovery from update failure. Range: It has a range of up to 1.0 km in open space. Compatibility: It supports up to 150 wireless peripherals, including sirens and keyfobs, when used with a compatible alarm hub. Power: It is battery powered. Visual Indication: The siren has a green LED display. Encryption: It features dynamic key encryption for security