ARA10-W Dahua Technology Dhi- WIReless SIRen
1km transmit distance (open area)
Sound intensity is 85dB (1m)
Tamper switch equipped
1.5 years battery life
Wall mount
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Read moreALC (automatic level control) processing circuit helps improve sound quality
Noise reduction technology
Supports cascading
Screws, plastic anchors, and mounting template included -
Read more12m/90**detecting range/angle
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