Extech 461891 High Precision Contact Tachometer

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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 Extech 461891 High Precision Contact Tachometer :

• 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
• Complete with cone tip, flat tip and spare wheel for surface speed measurements, four 1.5V AA batteries and case

Ordering Information:

• 461891 …………….Contact Tachometer
• 461891-NIST ……461891 with Calibration Traceable to NIST

Specifications Extech 461891 High Precision Contact Tachometer :