Processing customization No Model CF-LED tachometer type Electronic tachometer size diameter 66mm, height 57mm (mm) power supply 12v specifications electroplating shell, black shell product name: motorcycle tachometer/modified tachometer/motorcycle electronic tachometer/motorcycle Instrument Product Model: CF-LED Tachometer Product Size: Diameter 66mm, Height 57mm Backlight Color: Blue/Yellow Product Voltage: 12V Product Weight: 259g Product Shell Material: Iron Plating Product Applicable Models: Suitable for all vehicles with 12V battery voltage Product selling point: High-quality all-iron shell with 6-grade electrochrome plating, durable brightness, with bright two-color LED night running lights, even when driving at night, motorcyclists can clearly see the speed and voltage of the car. At the same time, it has a super waterproof effect, and the ordinary wind and rain are nothing to worry about. No longer have to worry about damage to the instrument when driving in rainy days. High quality workmanship, quality assurance. The contact point is made of high-quality copper material, which is more conductive and not easy to age. Product advantages: 1. The iron shell is electroplated with 6 grades of chrome, which is durable and bright, and it is not suitable for discoloration. 2. Ultra-high brightness, you can control the speed of your car anytime and anywhere even in the dark night. 3. The body is made of metal shell, Better waterproof effect 4. Suitable for all kinds of modified motorcycle tachometers Product use: used to measure the speed of motorcycles Wiring instructions: There are two sets of wires: 2 and 3: the long two: red connected to the positive pole of the power supply Three short black wires connected to the negative pole of the power supply (used to control the background light): black wire: connected to the positive pole of the power supply green wire: connected to the negative pole of the power supply yellow wire: connected to the speed signal wire