How to install it ?

- Cut an 85mm (3 3/8") hole in the panel and allow a clearance of 55mm (2 3/16”) behind the panel to fit the gauge.

- Put the gauge in the hole and screw down.

How to connect wires ?

Yellow wires （Yellow backlight）:Power Positive;

Orange wires（Red backlight）: Power Positive;

Black wires :RPM Signal;

Red wires : Power Positive;

Blue wires : Power ground;

Please note: Tachometer can be connected to 12VDC and 24VDC power directly.

Why Don't get RPM signal?

Tachometer sometimes cannot get signal by ignition system. So, I suggest Tacho sensor signal. It is more stable.ASIN NO. is B0BFWHM4QY or B0BFWCJ1FJ

How to be setting Tach RPM Ratio?

1. Turn on the power supply first.

2. Press and hold the mode button for 3 seconds to enter the setting speed ratio mode. then adjust speed ratio from 0.5-250 according to your request.

3. After setting, Data is automatically saved.

4. Please note: If your sensor is installed on the flying wheel panel, the RPM ratio is equal to the number of gears of the engine; If the speed signal takes from W-Terminal, the RPM ratio is equal to the half of the number of poles.

5. Normally, When the engine is at idle state, tachometer shows 600-800rpm that means speed ratio is correct. If not, you can turn down or turn up speed ratio to check RPM difference.

Package Includes

1x Digital Tachometer

1x Multi-plug socket

1x Installation Instruction