Digital Tachometer Non-Contact Laser Photo Gun RPM Tach Tester Meter Speed Gauge
Resolution: 0.1RPM at 2.5~999.9RPM; 1RPM at 1000~99999RPM. 3x Reflective tape. Color: Blue / Red. Do not use it near explosive gases or in other potentially explosive areas. Storage Humidity: 10 to 75%RH.