Measuring Range

3.0 - 99,999 rpm
0.3 - 1,500.0 Meters or Yards/min
(4,500 ft/min) or seconds 

Resolution

.001 rpm 

Accuracy

0.05% ±1 digit  

Optical Sensing Range

2 - 80" / 50 - 2000mm 

Update Time

0.8 sec  

Capture Mode

0.1 Sec  

Count

0-99999 revs or length in linear  

Time Interval

0-99999 seconds (auto)  

Memory Hold

Holds last reading for 1 minute  

On Target Indicator

Yes  

Housing Material

High Flow ABS - Metalised  

Batteries

4xAAA supplied  

Dimensions

21 L x 4 W x 3.5 D - cm  

Measuring Wheel

Included, 0.1 meter circumference 

Weight (kit)

0.4 Kg  

Warranty

1 year 

The ET-2109 is supplied as a complete kit with the tachometer, reflective tape, contact adapter, calibration certificate, instruction manual, 4xAAA batteries all in a hard plastic carrying case.
Combination Contact Adapter/Surface speed & length Adapter Included.