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 19,999 rpm 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
• Optional Certificate of Calibration traceable to N.I.S.T.

Specifications of the Extech 461891 Hand Held Contact Tachometer

• Range 0.5 to 19,999rpm; 0.2 to 6560ft/min; 0.05 to 1999.9m/min
• Accuracy ±(0.05%rdg +1d)
• Sampling Time 1sec>6rpm
• Resolution 0.1rpm (0.5 to 999.9rpm);1rpm >1000rpm
• Dimensions 6.7 x 2.8 x 1.5" (170 x 27 x 37mm)
• Weight 9.2oz (260g)
• Warranty 1 year