Extech 461891 High Precision Contact Tachometer, 9999 rpm, 6560 ft/min, 1999.9 m/min

The 461891 is a contact Tachometer. Surface wheels measure contact surface speeds (10 to 9,999 rpm) of rotating objects. The memory button holds last reading and recalls min/max readings display. Complete with wheels for linear surface speed (0.2 to 6560 feet/minute; 0.05 to 1999.9 meters/minute) or RPM measurements. Comes with cone tip, flat tip and spare wheel for surface speed measurements, four AA batteries, carrying case, and user manual.

Features:

• Large 5 digit LCD display is easy to read
• Built-in memory recalls last MAX/MIN value stored
• Autoranging with 0.05% accuracy
• Contact measurements from 0.5 to 19,999rpm plus linear surface speed measures in ft/min or m/min
• Simply contact rotating object with sensor tip and read
• Accessory wheels enable tachometer to measure linear surface speeds

For more information, please see Data Sheet