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Material: Plastic ABS
Case color: black
Outer ring color: black
Backlight color: white (only monochrome)
Unit: RPM
Measuring range: 0~8×1000rpm
Alarm function: manually adjustable rotation (manual rotation of the lower left button: 2000 to 8000 rpm)
Cylinder number setting: 1-8 cylinders
Lighting brightness adjustment: 5-speed adjustable
Suitable input voltage: only DC12V gasoline vehicles, not applicable to diesel vehicles
Wiring mode: red wire to + pole, black wire to - pole, yellow wire to + pole, green wire to ignition coil negative pole
Cylinder level setting mode:
Long press SET2 key for 6 seconds to enter the cylinder level setting mode, the LED light starts flashing and the pointer points to the corresponding cylinder value. At this time, press the SET2 key briefly to switch the pointer from 1-8, and the pointer will point to the corresponding cylinder value. 6 seconds without action will automatically save the cylinder value and exit the cylinder setting mode.
Gear light:
When the rotation speed exceeds the alarm setting value, the LED light will be on.

