Specifications:
Condition: 100% Brand New
Material: Plastic
Measuring range: 2.5-99999RPM
Resolution: 0.1RPM, at 2.5~999.9RPM; 1RPM, at 1000~99,999 RPM
Accuracy: ±0.02%+1 digtal
Measuring distance: 50~500mm
Response time: 0.5s (above120RPM)
Operating ambient temperature: 0 to 50°C (32 to 122°F)
Operating environment humidity: 10 to 90% RH
Storage temperature: -10 to 60°C (14 to 140°F)
Storage humidity: 10 to 75% RH
Battery: 9V (Battery not included)

Package list:
1 * Tachometer (Battery not included)
1 * Instruction manual

Note:
1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.
2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.