For a project aiming for 2km range finder module, it’s advisable to research specific industrial-grade LIDAR solutions first, which could involve working directly with manufacturers or using custom development services. If you’re looking for 905nm laser rangefinder module feasible within the Arduino ecosystem, consider projects with Seakeda that can meet your needs.
Regulatory Considerations: Using lasers for long ranges distance measurement can have legal and safety implications. In many countries, there are regulations regarding the use of high power lasers in unmanned aerial vehicles due to potential eye damage risks and interference with air traffic.
If your application absolutely require a more 2km range, you might consider using a JRT infrared 905nm laser rangefinder module or 1535nm laser rangefinder module, eye-safe laser rangefinder module combined with other navigation techniques such as GPS, inertial measurement units (IMUs), and image recognition for achieved more measurement applications.