How to make Laser Security (Theft) Alarm using SCR - 1 KM Range - YouTube
Chinese scientists develop laser that can spot hidden object from more than a kilometre away | South China Morning Post
Huepar HLR1000 Laser Range Finder (1000m)
TENBO 1KM 940nm Night Vision IR Infrared Light Laser Illuminator Module for Security CCTV Camera - China laser illuminator, infrared laser illuminatorv | Made-in-China.com
1km Eye Safe 905nm Laser Range Finder Measurement OEM Module - China Distance Measure Module, Laser Rangefinder Module | Made-in-China.com
HD longue portée Laser IR extérieure de la caméra PTZ avec lentille de 1 km 808nm - Chine PTZ caméra laser infrarouge, caméra IR
LASER POINTER Blue / Green <1km LAZER Beam Presentation — Battery Mate