Bow-mounted laser rangefinder with three axes of adjustment for proper positioning. Accurately measures distance on a reflective target out to 100 yards and displays on an easy to read OLED screen. Scan mode can be set to stay active for 3, 5, or 10 minutes before auto shut off. Includes all mounting hardware for use on compound bows or crossbows and is compatible with most sights on the market. Accurate to +- 1 yard. Requires (1) CR2 battery (included).