Item No.: C11A050
.5 Digital 18mm(0.6") white backlight LCD.  
.Measuring range:  
.Contacting tach:0.5~19999RPM.  
.Surface tach:0.05~19999m/min.  
.Resolution:  
.Contacting Tach:0.1RPM (0.5~999.9RPM)  
                               1RPM (over 1000RPM)  
.Surface Tach:0.01m/min (0.05~99.9RPM)  
                          0.1m/min (over 100RPM )  
.Accuracy: ±(0.05%+1 digit) of reading.  
.Sampling Time: 0.5s (over 120RPM).  
.Memory: Max. value, Min. value, Last value,can store 96s data  
.Range Select: Auto-Ranging.  
.Power Consumption: Approx 45mA.  
.Power:4x1.5V AA batteries.  
.Time Base: 6MHz Quartz crystal.  
.Time Base Accuracy: 10x10-6(0~50°C).