HS2234 Non-contact Laser Tachometer Digital Display Motor Tachometer, HS2234

1. Display: 5-digit liquid crystal display, reading 99,999
2. Measuring range: 2.5 rpm-99,999 rpm
3. Measurement resolution:
-2.5 rpm -999.9 rpm: 0.1 rpm
-1000 rpm -99999 rpm: 1 rpm
4. Measurement accuracy: +/-0.05%
5. Effective measuring distance: 50-500mm
6. Sampling rate: 0.5 seconds (above 120 rpm)
7. Time base: Quartz crystal
8. Operating temperature: 0-50 degrees Celsius
9. Storage temperature: -20-70 degrees Celsius
10. Power supply: two AAA (seven) batteries
11. Instrument size: 108(L)X60(W)X32(H)mm
12. Accessories: manual, battery, reflective strips (24cm x 4 strips)