8021B LED 52mm R.P.M Gauge Speedometer Auto Mobile Led Display Tachometer

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Description :

• Brand: SINCO TECH
• Gauge Model: R.P.M gauge

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  Apply: All 12v cars

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  Package include:

  Tachometer:

  1 X Digital LED Tachometer

  1 X Cable

  1 X English manual

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  Specification:
  Running with 4, 6 or 8 cylinder engines
  Diameter: 52mm/2"
  Unit: RPM
  Measuring range: 0~9999rpm
  Lighting: blue digital display
  Power supply: 12V
  Shell: black
  Outer ring: black
  material: plastic
  Net weight: about 200g
  Packing size: 16.5×12.5×7.5

Although the speed is only a parameter of the engine, as in the above scenario, the tachometer can transmit a lot of important information.
The invention of the tachometer to indicate the running state of the engine was earlier than that of the automobile. It was first used to detect the rotating speed of the rotating equipment, ensure that it operates in a safe speed range, and prevent equipment damage. In the automotive field, it was first used in racing. It is difficult for a racing driver to judge whether the engine has reached the maximum speed through sound, but the last trace of engine performance must be squeezed. Therefore, the introduction of the tachometer can give the driver an intuitive indication.