【Accurate RPM Reading】 This tachometer displays 0–6000 RPM with a bright red needle, plus an hour meter from 0 to 99999.9 hours. The 3‑3/8" (85mm) dial fits standard dash openings. A reliable rpm gauge for tracking both speed and run time.
【Compatibility】 This automotive tachometer fits cars, trucks, boats, and tractors ect, working with 1‑10 cylinder gas, diesel, or outboard engines. It operates on 9‑32V DC power. One rpm tachometer covers all your vehicles – no extra gauge needed.
【Custom Clear Display】 Choose from 7 backlight colors (red, green, blue, white, yellow, cyan, purple) to match your preference. LED backlight and red pointer ensure night visibility. Anti‑fog curved glass keeps the rpm tachometer clear in any weather.
【Durable & Waterproof】 Rated IP67, this marine tachometer features a 316 stainless steel bezel and tempered glass. Whether facing saltwater spray or muddy trails, this rpm gauge resists rust, scratches, and heavy splashes – ensuring reliable performance season after season.
【Calibration】 To set your tachometer, input the known pulse number per revolution. If unknown, use the manual's reference or try any value. Then adjust: if idle RPM reads high, increase the ratio; if low, decrease it. Quick and simple tuning. （For complete calibration steps, please see the detailed guide in the product description section below. ）
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