RED LED Tachometer RPM Speed Meter + Hall Proximity Switch Sensor NPN

Features:

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).

Specifications:

Display: 0.56" 4-digit LED

Display Color: Blue / Green / Red (Optional)

Rotate Speed Range: 5-9999RPM

Frequency Range: 0-98990.1Hz

Rate Setting Range: 1-99(default: 01)

Reset Time: 10s

Refresh Time:

120-1200RPM: 0.2~0.5s;

2400-9999RPM: 0.25~0.6s

Accuracy:

<5000RPM: Approx. 2RPM;

>5000RPM: Approx. 3RPM

Input Signal: Voltage Pulse Signal, Active Contact Signal, PNP, NPN

Power Supply: DC 8-15V

Installation: Embedded

*Wiring:

+12V: DC 8-15V Input Positive

GDN: DC Power Negative

IN+: Signal Input