High Precision 0.56" 4 LED Digital Frequency Tachometer Car Motor Speed Meter RPM Measurement Tester 5-9999R/M DC 8-15V

Features:
Mini size, high performance and fast reaction speed.
0.56 LED 4-digits display, clear and easy for readings.
Rotate speed measuring range: 5-9999RPM; frequency range: 0-98990.1Hz.
Setting parameters will be memorized when power off.
Suitable for detecting the speed of every kind of motors.
Tachometer Rate Setting Instructions:
1. Rate range: 1-99(default 01: display value is same with actual value; if the rate is 10, display value*10=actual value);
2. When power on, the meter display 0;
3. Press SET button, display 1; press again, display 01...
4. When display 1, is measuring RPM; press ADD, from 1 to 2, when display 2, is measuring frequency; display 01 is for rate setting, short press ADD for +1, long press for +10;
5. After setting the values, it will be stored if no operation in 10s, return the selected function interface;
6. With 1 decimal point, that is when rotate speed is 1000RPM, the rotate speed corrects to 1st digit after the decimal point; no decimal point when 1000RPM.
Tips:
User can set the appropriate rate so as to measure frequency, less than 100KHz (999.9*99=98990.1Hz).