The Foneso F100 is a Class II laser rangefinder, meaning it is safe for general use but should not be stared into directly. It uses a 635nm laser with a power output of less than 1mW. The device has a maximum measuring range of up to 100 meters or 328 feet, making it suitable for both indoor and outdoor tasks, from remodeling a single room to estimating the dimensions of a large property.

Align the laser point exactly on your target wall or object.