The Labradar LX is the latest generation of Doppler Radar Chronographs. Brought to you by Infinition, the original inventors of the personal Doppler Radar Chronographs. Labradar is used by more ELR shooters than any other chronograph.FeaturesTough Metal CaseExtreme Accuracy of +/- 0.1%Use for Rifles, Pistol, Archery, Air Guns, Paintball, Shotgun SlugsAdd shots to previous seriesLong Lasting Internal Rechargeable BatteryVelocity Range of 65 to 5,000 fps.Bright LCD Screen for outdoor viewingBuilt in IPSC / IDPA Power Factor and Ke CalculatorDisplays Average, ES, SD, Min, Max VelocityCompact size : 2.5" X 2.75" X 2.75"Bluetooth Mobile AppTripod included