1) 5 digits 18mm (0.6") White backlight LCD  
2) Accuracy: �� (0.05%+1 digit)  
3) Sampling Time: 0.5sec (over 120RPM)  
4) Range Select: Auto-Ranging  
5) Memory: Max. Value, Min. Value, Last value  
6) Can store 96s data  
7) Power Consumption: Approx 45mA  
8) Time base: 6MHz Quartz crystal  
9) Time base Accuracy: 10x10-6(0~50��)  
10) Measuring Range: CONTACT TACH: 0.5~19, 999RPM  
11) SURFACE SPEED: 0.05~1, 999, 9m/min  
12) Resolution: CONTACT TACH: 0.1RPM (0.5~999.9RPM) 1RPM (over 1,000RPM)  
13) Surface speed: 0.01m/min (0.05~99.99m/min) / 0.1m/min(over 100m/min)  
14) Battery: 4 x 1.5V AA batteries (not include)
15) Size: 17.5cm x 7cm x 3.5cm