This Cen-tech Digital Contact Tachometer is a reliable and efficient tool for measuring speed in various applications. The device is designed to use contact tachometer measurement method(s) to provide accurate readings. It is manufactured in China and has not been modified. The brand name is Cen-Tech, and it does not come with any custom bundle. This digital tachometer is perfect for use in business and industrial settings, as well as for test, measurement, and inspection purposes.