EXTECH 461895 Tachometer Combination Photo / Contact

The Extech 461895 Combination Contact/ Photo Tachometer is a patented design providing contact and non-contact RPM measurements. In addition, the Extech 461895 linear surface speeds can be measured in ft/ min. or m/ min. Extech 461895 Features: * Unique display where characters reverse direction depending on measurement mode you are in * Large 0.4 " 5 digit LCD digital display * Microprocessor based with quartz crystal oscillator to maintain high accuracy * Tachometer memory stores last, max and min readings * Provides wide RPM ( photo) and Linear Surface Speed ( contact) measurements * Microprocessor precision, Accurate to 0.05% * Permits readings to a resolution of 0.1 RPM in either photo or contact mode