Anti car laser

Digital LCD Photo Tachometer Non-Contact RPM Meter Motor Speed Gauge Car Speed Tach Meter Speedometer Features: - Automatic and manual measurement mode. - Data logging and viewing mode. - Maximum value minimum and average value recording function. - Record interval setting function. - LCD displays white backlight. - Time keeping function. - Automatic and manual shutdown. - Low battery display. Specification: Measuring range: 2.5-99999RPM Resolution: 0.1RPM, at 2.5~999.9RPM; 1RPM, at 1000~99,999 RPM Accuracy: ±0.02%+1digtal 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 Size: 145*90*35mm