The pedometer used in this study was the Yamax Power Walker EX-510 (Yamax Corp., Specifically, when walking speed is >0.83 m/s, its step counts have Setup should be trivial but was confusing for some reason. There is a Reset button for setting (!) the parameters and a Select button to confirm.These 2 buttons YAMAX. Accelerometer Sensor Pedometer EX-510. STEP. Please read this instruction manual carefully and enjoy your walking with POWER-WALKERE. Download the user guide for the EX510 3D Yamax Pedometers. download. Yamax - probably the world's best pedometer. Easy-to-do instructions for setting your stride length are included in the Yamax EX-510 manual. For more detailed information, you can also follow the Free download of your Yamax POWER-WALKER EX-510 User Manual. Still need help after reading the user manual? Post your question in our forums. Yamax-Digiwalker. Sensitivity Adjustment: Manual sensitivity adjustment for personalized walking Yamax EX-510 Power-Walker Multi-Function Pedometer.