Digital Laser Photo Contact Tachometer RPM Meter Surface Speed Meter DT6236B

PHOTO?CONTACT TACHOMETER DT2236B

5 digits 18mm (0.6") LCD
Accuracy: ±(0.05%+1 digit)
Sampling Time: 0.5sec(over 120RPM)
Range Select: Auto-Ranging
Test Base: 6MHz Quartz crystal
Battery: 3x1.5V AAA battery (Not included)
Detecting Distance: 50~500mm
Power Consumption: Approx 45mA
Measuring Range:
Photo Tach: 2.5~99,999RPM
Contact Tach: 0.5~19,999RPM
Surface Speed: 0.05~1,999.9(m/min)
Resolution:
Photo Tach: 0.01RPM(2.5~999.99RPM)
           0.1RPM(1,000~9,999.9RPM)
           1RPM(over 10,000RPM)
Contact Tach: 0.01RPM(0.5~999.99RPM)
             0.1RPM(1,000~9,999.9RPM)
             1RPM(over 10,000RPM)
Surface Speed: 0.01m/min(0.05~99.99m/min)
              0.1m/min(over 100m/min)