1. This tachometer is widely used in automobiles, outboard engine, construction machinery and motorcycle modification.
2. Has the advantages of high?accuracy instructions, repeatability and versatility, reliability and stability, and relatively simple for training and controlling.
3. The tachometer uses a stepping motor to drive the pointer, precise motor RPM display and clear LCD to display the time.
4. The entire shell is completely waterproof, with a protection level of IP67 and excellent anti-fog function.
5. Made of high qualiy material of aluminium alloy and ABS, which makes it durable and have long service life.

Specification:
Item Type: Tachometer
Material: AlumInium Alloy+ABS
Diameter: Approx. 52mm/2in
Fitment: For Automobile, outboard engine, construction machinery, motorcycle
Connection Mode:
Black: Power negative (-)
Red: 9-32 VDC
Blue: RPM signal
Yellow: Backlit
White: Adjustment
Instruction:
1. The white line touches the negative pole for 3 seconds to enter the setting speed ratio mode.If you leave the negative pole for more than 3 seconds,it will exit the setting mode.
2. When the white wire touches the negative pole,the value keeps increasing ;when the white wire is loosened and touches the negative pole,the value keeps decreasing.The longer the white line touches the negative pole,the faster teh value counts.The minimum step value of counting is 0.1,the adjustable range is 1.0-360.
3. After adjusting the speed ratio to meet your requirements,the white line leaves the negative pole.After 3 seconds,the tachometer will automatically save the result you set.If the settings do not meet your requirements,reset them.

Package List:
1 x Tachometer
1 x Manual