Caldwell G2 Ballistic Precision Chronograph!

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