Features：
Contact Tachometer: Measure rotational speed with contact, single mode for versatile testing. contact range: 3~19999RPM, 0~99999m, 0~1999.9m/min, 0~9999.9ft/min.
High for precision: Accurate readings with contact accuracy of ±(0.%FS+1RPM)/±(0.%FS+O.2M)/±(0.%FS+0.2m/min)/±(0.%FS+0.6ft/min). Fast sampling time of just 0.8 sec (above 60 rpm).
Multi-function: LED backlit display for easy reading in any lighting condition. Store and recall latest, minimum, and maximum readings. Switch between 4 units: RPM, m, m/min, and ft/min.
Wide application: Industrial Grade tachometer suitable for measuring motor, fan, pump, turbine, gear, and other rotating object speeds.
Package included: Kit includes tachometer, 4 detachable adapters, carton box, and user manual.

Specification:
Part Name: Digital Tachometer
Color: Black/Red
Material: Plastic
Model: TA500B
Measuring way: Contact
Measuring range: 3~19999RPM, 0~99999m, 0~1999.9m/min, 0~9999.9ft/min.
Accuracy: Non-contact type: ±(0.%FS+1RPM)/±(0.%FS+O.2M)/±(0.%FS+0.2m/min)/±(0.%FS+0.6ft/min)
Resolution: RPM:Speed display: six-digit display, maximum 99999
Effective measurement distance: 50mm~500mm
Sampling time: 0.8 seconds (above 60 rpm)
Automatic shutdown: 15 minutes (can be turned off manually)
Usage environment: -10~50℃, maximum 80% relative humidity, indoor altitude Storage environment: -10~50℃, maximum 70% relative humidity (remove the battery)
Power supply: 2×.5V AAA (R03/LR03) (not included)
Size: 146x59x29mm
Display size: 34 x 31mm
Weight: about 117g (without battery)

Package Content:
*Digital Tachometer
4*detachable adapters
*Instruction Manual