Description:Tachometer is used to detect rotate speed, linear velocity or frequency of motor.Widely used in motor, fan, washing machine, textile, automobile, airplane, ship and other industries.Readings are displayed on a large, easy-to-read LCD screen.Smart Hold Function - You can write down the data by pressing the Hold key. So the results will not be lost, which can save your time and energy.Portable - Small size,easy to operate and carry. Low Battery Detection - Built-in low battery indication,auto power off without operation after 1 minute,convenient and power saving. Specifications:Model: GM8905.Display: LCD Backlight Unit: RPM.Measuring Range: 2.5~99999RPM.Resolution Ratio: 0.1RPM(2.5~999.9RPM); 1RPM(1000~99999RPM).Measuring Error:+/-(0.1%n+5d)RPM; 0.1RPM(2.5~999.9RPM) +/-(1%n+5d)RPM; 1RPM(1000~99999RPM).Sampling Ratio: Once/second.Measuring Distance: 50-500mm.Auto Shutdown: After 60s without any operation.Battery low power indication.Hold the Maximum/minimum/average/last measured value.Power Supply: 2 * 1.5V AAA Batteries (Not included).Package Include:1 * GM8905 Tachometer.1 * User Manual.
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