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more NVR channels
0 (human & vehicle filtering) — drastically cuts down false alarms from shadows
it’s designed to perform reliably in demanding real-world environments
4 SATA Bays + eSATA Support
Smart AcuSense detection filters out the noise
AJAX STREETSIREN WIRELESS OUTDOOR WHITE micro sd more NVR channelsSpecifications Ajax StreetSiren Device type: Wireless Use: Indoor Outdoor Alarm type: Light and sound Sound alarm volume: Adjustable, 85 113 dB at the distance of 1 m Working frequency of piezo buzzer: 3. 50. 5 kHz Light alarm: Red LED Arm disarm armed state indication: Yes Power supply: From on board batteries or external 12V DC Battery type: 4 CR123A batteries, 3V Battery indicator: Yes Battery life: Up to 5 years External power supply: DC 12 V20%