Specifications and Product Details:

Key Features: This device is very easy to use and have substantial advantages over current technologies.

Multifunction, one instrument combines LASER PHOTO & SURFACE CONTACT measurements
Reads in RPM, ft/min, and m/min
Wide & Auto Measuring Range : 0.5 to 19,999 RPM
Laser aims to the best targeting
Measurements possible in inaccessible places
Computer-based design gives high accuracy & fast measuring time
The last value / max value / min value will be automatically stored in memory for display
Durable, long lasting components, light weight ABS-Plastic housing assures long years operations and maintenance free performance
Safe measurement of rotational speeds, velocities and distances
Brand new and unused
Store 5 digit LCD display with clear and insignificant zero suppression
Includes laser reflecting strips, rubber wheel and rubber cone tip, rubber funel tip, operations manual and protective carrying case

Specifications:

Measure in ft/min and m/min
Measuring Range:
********PHOTO TACH : 2.5~99,999rpm
********CONTACT TACH : 0.5~19,999 rpm
********SURFACE SPEED : 0.05 to 1,999.9m/min
Resolution:
********PHOTO TACH : 0.1 RPM (2.5 to 999.9 RPM)1 RPM (over 1,000 RPM)
********CONTACT TACH : 0.1 RPM (0.5 to 999.9 RPM),
******************* 1 RPM (over 1,000 RPM)
********SURFACE SPEED : 0.01 m/min (0.05 to 99.99m/min),
******************* 0.1 m/min (over 100m/min)
Accuracy: ±(0.05% +1 digit)
Sampling time: 0.8 seconds over 60 RPM
Test range select: Automatic
Memory: Maximum value, Minimum value, Last value
Detecting Distance (Photo detection): 0.164ft to 1.640ft or 2" to 20"
Time Base: Quartz Crystal
Circuit: One chip of microcomputer LSI circuit
5 digit LCD with function annunciation
Power consumption: Aprrox. 50mA (operation)
Operating temperature: 0-50°C (32-122°F)
Unit Dimension: 215mm 65mm x 38mm
Weight: 300g (including battery)
Power: 3 x 1.5V AA (UM-3) batteries