Robic M319 3D Motion Sensor Pedometer Count the steps you take and the calories you burn with the Robic M319 Motion Sensor Pedometer. Featuring a large, easy-to-read digits and seven-day memory recall, this pedometer accurately measures distance traveled and helps you easily track results. Solid-state, dual-axis, motion-capturing technology accurately tracks the number of steps you've taken. Closed cover/lid for privacy. CR-2032 lithium battery with a one year warranty.