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Continuous & accurate readings from 5 to 99,990rpm
Features:
    •Measure rpm from 5 to 99,990rpm with microprocessor quartz crystal accuracy of 0.05%
    •Large LED display updates 1/sec (rpm<60)
    •Resolution: 0.1rpm (5 to 1000rpm), 1rpm (1000 to 999rpm), 10rpm (10,000rpm to 99,990rpm)
    •Unique design permits rpm measurements of a one hole gear or disk eliminating the need for special gears;
    •Optional proximity and photo sensors