Specification :

LASER tachometer, photo tachometer, Digital Tachometer

5 digits 18mm ( 0.6" ) LCD
Accuracy: ± ( 0.05% + 1 digit)
Sampling Time: 0.5sec( over 120RPM)
Range Select: Auto-Ranging
Memory: Max. value, Min. value, Last value
Test Range: 2.5~ 99, 999RPM
Resolution: 0.1RPM( 2.5~ 999.9RPM)
1RPM( over 1, 000RPM)
Detecting Distance: 50~ 500mm
Battery: 3x1.5V AAA battery
Time Base: 6MHz Quartz crystal
Time Base Accuracy: 10x10-6( 0~ 50° C)
Power Consumption: Approx 40mA Dimension: 184Lx76Wx30H( mm)