Dual function tachometer features the ability to measure RPM with non-contact (visible light) and contact (ft/min / m/min) measurements quickly and accurately. REED R7140 Offers This tachometer features both the ability to measure RPM (revolutions per minute) in rotational equipment and surface speed m/min (meter per minute) / ft/min (feet per minute) with included contact adapters. The R7140 uses visible light for non-contact measurements to read up to 12" (300mm) from any target. The R7140 features a durable ABS plastic housing to assure years of maintenance free performance. Features Dual function unit with both contact and non-contact capabilities Provides fast and accurate RPM measurements of rotating objects and surface speed measurements m/min (meter per min) and ft/min (feet per min) Internal memory holds last reading for 5 mins and recalls min/max and last value LCD Display reverses depending on measurement mode Included Photo / Contact Tachometer Reflective Tape Large and Small Cone Tip Adapters Funnel Adapter Wheel Adapter Batteries Hard Carrying Case