{"product_id":"faria-beede-instruments-33842","title":"Faria Chesapeake White SS 4\" Tachometer - 4000 RPM (Diesel)(Mechanical Takeoff \u0026 Var Ratio Alt)","description":"\u003cp\u003e\u003cstrong\u003eChesapeake White SS 4\" Tachometer - 4000 RPM (Diesel) (Mechanical Takeoff \u0026amp; Var Ratio Alt)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePerimeter-lighted White dial with stylish Blue and White graphics, polished stainless steel bezel, contoured White pointer and domed glass lens.\u003c\/p\u003e\u003cp\u003eElectronic tachometers work by counting pulses generated by the ignition system, alternator, tach signal generator or magnetic pickup sender. The tach is hooked up to +12VDC, Ground and one of the signal sources listed.\u003c\/p\u003e\u003cp\u003eBy selecting the right tach and setting the switch on the back to the correct position you let the tachometer know how many pulses are sent per each engine revolution.\u003c\/p\u003e\u003cp\u003e4\" - Hole size: 3.375\" (85mm)\u003c\/p\u003e","brand":"Faria Beede Instruments","offers":[{"title":"Default Title","offer_id":45253437685942,"sku":"FAR\/33842","price":155.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/6584\/6966\/files\/54640XL.jpg?v=1783735011","url":"https:\/\/ampedupmarine.com\/es\/products\/faria-beede-instruments-33842","provider":"Amped Up Marine","version":"1.0","type":"link"}