Product name: laser correlation detector "four beam" Product model: DA208Y - 4 Alert level: four beam Wavelength: 980 nm (not visible) Warning distance: 0 ~ 1000 m is optional Signal recognition: each beam independent signal identification, multiple beam same direction signals of non-interference in each other Alarm: single-beam interrupt call the police Working voltage: AC/DC12V (support wide voltage intelligent management mode) Working current: launch 220 ma, receive 220 ma Relay output way: two groups often open/closed contact, often can support the linkage Contact capacity: AC120V/DC24V 1 a Max level effectively To adjust the Angle: horizontal plus or minus 15 °, vertical + 15 ° Alarm time: 10 s (optional alarm output time) Response time: 20 ~ 380 ms ms (trigger alarm response time) Working temperature: - 45 to 80 cent.degree Acceptance Angle: > 13 ° Waterproof level: IP67 Size: post: 70 * 90 * 800 mm chassis: 120 * 100 mm Mounting holes: hole center 122 * 102 (4) 6.5 * 14 mm hole Use environment: the wild, outdoor and indoor Product introduction Daaotimes laser correlation alerter with invisible light 980 nm wavelength laser technology, easily concealed protection, the shape of the column makes products could vertical installed on the wall or be installed in a tilting Angle of 90 degrees, which according to the characteristics of the building and security requirements. the installation key point is to post the basis fixed and no shift or shaking.Strong penetrating power of laser, very low rate of false positives, far prevent distance makes laser beam do not like radio waves, infrared light that can be influenced by the background light and interference (also does not affect product performance in the hot sun protection).the detection range can be adjusted from 0 to 1000 meters according to the requirement.Products elegant appearance, convenient installation, good waterproof performance is suitable for use in indoor, outdoor, outdoors, such as protection operation, can also support monitoring probe linkage lights, etc. Product scope Mainly aimed at the field, outdoor and other areas, such as: height limit bridge, railway, subway, factories and mines enterprises, large oil field oil depot, wharf, libraries, Banks, power, museums, exhibition halls, schools, farms, alert at the airport, prison security and military stronghold, armory, border border on the need to focus on strengthening monitoring, prevention, security, security, border crossing, outdoor enclosures all environment, there are important items of shops and warehouses, etc., also USES in the home guard against theft and more safety guarantee.