DPF 4 Digit Display Frequency Tacho Meter, Frequency Tacho Counter,RPM Counter Meter, HZ Meter (IBEST) Quality Choice

1. Features of Digital Frequency Meter / Tacho Meter :

*   Frequency meter / Tacho meter
*   Red LED display, 14.2 mm high
*   Soft buttons, easily operate
*   Measuring range:  up to 9999
*   Measuring frequency is selectable: 0.11~1KHz / 0.11~10KHz (up to 50K Hz can be ordered)
*   Frequency and tacho can be converted by software
*   Decimal point,modulus and display unit can be set freely;
*   Division modulus range: 0~9999
*   Multiplication modulus range:  0.001~9999
*   Refresh time and zero-return time can be set within 0~9s.
*   Power fail holing function, up to 10 years.
*   With or without analog output:0~20mA or 4~20mA
*   Relay and transistor output at the same time ( can drive solid state relay)