Beha-Amprobes' TACH20 tachometer can measure both rotational and surface speed, either via direct contact or by use of infrared non-contact measurements.
RPM values can be measured for both modes in m/min, m/sec, ft/min, ft/sec, in/min, m, ft and in. Please see the tech specs below for more information on the range for each unit type.
An adapter at the top of the TACH20 is designed to select a wide variety of tips and Beha-Amprobe's surface speed wheel for direct contact measurements. Alternatively you can use the built-in infrared beam option to measure RPM safely from a distance.
Additional functions of this unit include an automatic power off function and integrated memory storage of MAX/MIN results over a period of time.
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