self-leveling red line laser 1.laser line length 4m at a ... lens, driver circuit and housingBetter dot quality,small divergenceHigh reliability, high stability, long life,low priceApplicationsMachine visionIndustrial inspectionIndustrial marking devices3D contour ... °C~80°Csize :110*100*130mmMTTF 8000 hoursWarranty 1 year self-leveling red line laser