To measure surface roughness of various machinery - processed parts Mobile app compatible to get the higher accuracy, convenient to be used in a small space Dual OLED displays to suit your applications; 2 start keys ( the left key & the right key) to satisfy the different using habits; Mobile app compatible to get the higher accuracy, convenient to be used in a small space ARM processor to offer higher speed, low power consumption and fast accurate measurement. Light weight of 150gï¼? easy & convenient to use. z
