Starck Basic Laser Speed Guns are widely used by law enforcement agencies for speed enforcement on roadways. They emit a narrow beam of infrared light towards a target vehicle and measure the time it takes for the light to reflect off the vehicle and return to the device. The accuracy of these devices is typically influenced by factors such as distance to the target, target size, and environmental conditions. Starck Basic Laser Speed Guns are often used in outdoor environments and must be rugged and durable to withstand various weather conditions.