Feature

●First, please insert the gauge and lock it in place after drilling a hole of 70mm deep)
●Speed Ratio: 1-300 Press the button on the back to adjust the speed ratio. Idling speed is usually 600-800rpm. See owner manual for more details
●Suitable for diesel and gasoline engines. Tachometer can get signal from engine, ignition coil, crankshaft sensor or taco sensor (sold separately), etc
●Red backlight, 9-32VDC (12VDC/24VDC) working voltage
●One year warranty, 100% waterproof and anti-fog protection


Description

Product Features:
- Suitable for all kinds of rotational speed sensors and displays the engine speed
-IP67 waterproof and dustproof grade
- Stepper motor is used in a full range of stepping gauges and has excellent features such as low power consumption, long life and high precision. Fog function)
- Ultra-wide working voltage design (long operating voltage: 9-32V, max 36V(≦1min)
Technical Data:
- Finishing Dimension: 85mm(3-3/8")
- Range Specify: 0-4000RPM
- Speed ratio: 1-300 adjustable range
-Suitable for diesel and gasoline engines
- There is a button on the back of the tachometer, you can press it to adjust the speed ratio.
- When engine idles, the tachometer indicates 600-800 RPM. (This means the speed ratio is correct. )
Otherwise, you can try to change the speed ratio up and down and then you can see the difference of tachometer needles.
- Operating Voltage: 9-32V (12V/24V)
- Backlight: Red
- Function: The current octopus/RPM and time cannot be reset.
- Operation mode: LCD display, stepping motor

Package:
1 x Tachometer
1 x Japanese instruction manual (English language not guaranteed).