PHOTO/CONTACT TACHOMETER Model : DT-2238 * * * * * * * * FEATURES World's patent, Multi-functions, one instrument TACH. ( RPM, m/min., ft/min. ). Wide measuring range from 0.5 to 100,000 RPM. 0.1 RPM resolution for the measured value < 1000 RPM. The last value, max., value, min. value will be stored into the memory automatically & can be obtained by pressing Memory Call Button. High visible LCD display gives RPM reading exactly with no guessing or errors & saves battery energy.
