Extech 461895 Combination Contact/Photo Tachometer

The combination tachometer is a patented design providing contact and non-contact RPM measurements. In addition, linear surface speeds can be measured in ft/min. or m/min. Features: - Unique display where characters reverse direction depending on measurement mode you are in - Large 0.4” (5 digit) LCD display - Microprocessor based with quartz crystal oscillator to maintain high accuracy - Tachometer memory stores last, max and min readings - Provides wide RPM (photo and contact) and - Linear Surface Speed (contact) measurements - Accurate to 0.05% with max resolution of 0.1rpm in either photo or contact mode - Complete with tips and wheel for rpm or linear surface speed, four 1.5V AA batteries, reflective tape and carrying case

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