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Display: 5-digit large-screen LCD display, character height 18mm Measuring range: 2.5～99999RPM (r/min) non-contact speed 0.5～19999RPM (r/min) contact speed 0.05～1999.9m/min (m/min) contact surface speed Resolution: Non-contact speed: 0.1RPM (r/min) (2.5～999.9RPM) 1RPM (r/min) (above 1000RPM) Contact speed: 0.1RPM (r/min) (0.5～999.9RPM) 1RPM (r/min) (above 1000RPM) Contact surface speed: 0.01m/min (m/min) (0.05～99.99m/min) 0.1m/min (m/min) (above 100m/min) Measurement accuracy: ±(0.05%+1 digit) Sampling time: 0.6 seconds (above 100 rpm) Range selection: automatic switching Time base: 6MHz quartz crystal vibrator Effective distance: 50mm～500mm (photoelectric type) Size: 155x70x35mm (without contact accessories) Power supply: 3 ×1.5V AA batteries |
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