Specification: Face Color:Black Bezel Materials: Stainless Steel Indicating Range: 0-8000RPM Operating Voltage:9-32VDC Operating Current:≤100mA Operating Temperature:-30~+75 ℃ Storage Temperature:-40~+85 ℃ Install diameter: 85mm(3.3 inch) Grade of protection :IP67 Package method :Neutral box The adjustment range of speed ratio:1-12 Features: -100% Brand new and high quality. -Excellent anti-fogging performance. -316 Stainless steel bezel with curve glass. -Easy installation with multi-plug socket connection design. -Black Ground Design With Red Backlight This tacho must be hooked up to the "W" terminal on vehicle alternator. Many diesel engines and most inboard gas boat engine alternator have this connection. Package Included: 1xTachometer 1xWiring Harness 1x Instruction manual.
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