Manufacturer Part Number: PCE-DT 50|Tachometer Type|Digital Display; Laser Tachometer; Non-ContactAccuracy|0.02%Display Type|LCDMinimum Measurement|2.5 prmMaximum Measurement|99999 rpmMinimum Resolution|0.1 rpmMaximum Resolution|1 rpmMeter Width (mm)|Minimum Target Distance|50mmMaximum Target Distance|500mmBattery Chemistry|AlkalineBatteries Included|Battery Size|9 VNumber Of Batteries|Meter Length|Meter Thickness|Meter Width|Sensor Type|Diameter|Includes|UNSPSC Code|