Digital Tachometer Non-Contact Laser Photo Gun RPM Tach Tester Meter Speed Gauge

Resolution: 0.1 RPM at 2.5-999.9RPM / 1 RPM at 1000 - 99,999 RPM. Mine Handheld Gun Type Design. 3x Reflective tape. Operation Humidity: 10 to 90%RH. Operational Temperature: 0 to 50 Deg. C (32 to 122 Deg. ).

eBay