Detailed instructions Product specification: Laser Correlation Detector for Colum Type "Double beam" Product Type:DA208Y-2 Laser wavelength: 980nm not visible (650nm optional) Distance：0～1000meter Optional Alert level: Double beam Explosion-proof grade:Exib II BT6 (Optional Explosion-proof or non-explosion-proof) Alarm Way:Single beam or double beam can be interrupted alarm Operating Voltage: AC/DC12V (Support wide voltage intelligent management mode) Current：Transmit 180mA, Receive 180mA Output:Two sets of relay normally open / normally closed contacts, support linkage Contact Capacity： AC120V/DC24V 1a max High and low effective; Wireless Output：Support GSM mobile module remote wireless alarm output Angle of Adjustment: Level ±15°, Vertical ±15° Alarm time: 10s Optional alarm output time Response Time: 60ms~380m Trigger an alarm response time Operating Temperatue:-45℃～85℃ Acceptance angle:>13° Relative Humidity: 35%～95% Waterproof grade：IP67 Size: pillar: 70 * 90 * 460mm chassis: 120 * 100mm Mounting Holes：Hole center 101*79.5mm（4pcs holes 6.5*14mm） Use environment: Wild, Outdoors, Indoors