FEATURES:-18 sensor spacing for maximum accuracy-Each unit factory calibrated to within +/-0.25% accuracy-Built-in LED light kit-Bluetooth to interface with Smartphone-Rechargeable lithium ion battery-Ideal for firearms archery airgun or paintball-Meters Per Second (MPS) or Feet Per Second (FPS) readings-App displays velocity logs data notes weather conditions & easily exports via SMS or e-mail
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