1) 100% brand new and high quality and cheap

2) 5 digits 18mm (0.6) LCD

3) Accuracy: ± (0.05%+1 digit)

4) Sampling Time: 0.5sec (over 120RPM)

5) Range Select: Auto-Ranging

6) Memory: Max. value Min. value Last value

7) Measuring Range: 2.5~99 999RPM

8) Resolution: 0.1RPM (2.5~999.9RPM)

9) 1RPM (over 1 000RPM)

10) Detecting Distance: 50~500mm

11) Battery: 3 x 1.5V AA batteries (not included)

12) Time Base: 6MHz Quartz crystal

13) Time Base Accuracy: 10 x 10-6(0~50℃)

14) Power Consumption: Approx 40mA

15) Size: 15cm x 7cm x 3.2cm"