Specification:

5 Digits LCD Display

Measuring Range: Photo Tach 2.5 to 99，999RPM

Contact: Tach 0.5 to 19，999RPM

Accuracy: ±(0.05% + 1 digit)  

Sampling time: 0.8sec.(over 60RPM)

Test Range Select: Automatic.

Memory: Max.value， Min.value， Last value

Detecting distance: 50 to 500mm/2 to 20 inch(photo)

Time base: Quartz crystal

Circuit: Exclusive one-chip of microcomputer LSI circuit  

Battery: 4*1.5v AAA(UM-3)

Power consumption: Approx. 50mA (operation)

Operation Temp.: 0 to 50°C(32°F to 122°F)

Size: 215*75*38mm

Weight: 509g