Placement on Vehicle:Front Country/Region of Manufacture:China Special Features:tachometer Material Type:stainless steel,glass,pvc Item Weight:0.32kgs Manufacturer Part Number:231035 Origin:Mainland China item color:black,white backlight color:red green blue white yellow olivine orange purple working voltage:9~32vdc indication range:0~6000RPM Technical Data: Material:stainless steel 316L+anti-fogglass Install diameter:85mm or 3-3/8" Indication range:0~6000RPM Connectionmethod:row insert Backlightcolor: redgreenbluewhiteyellowolivineorangepurple,totally8kindsdifferentbacklightcolor,itwillchangeautomaticallyevery 1 minute,oryoucanfixonlyonecolorthatyoulikethroughpressthegaugeback"set"button Working voltage:9~32VDC Input signal:pulse Working current::100mA Operating temperature:-30~+75 Storage temperature:-40~+85 Grade of protection:IP67 Item color:black,white Item condition:new Package method:neutral box Place of origin:China Press the back "Mode"button on the gauge for 3 seconds,then it will enter into the speed ratio set up mode,if the button is released for 3 seconds,it will exit the speed ratio set up mode,and automatically retain the setting data As the tachometer is in setting mode,press the button to select the speed ratio required.for instance,the pointer point at 1000rpm is for 2 cylinder engine,when the pointer pointat 2000rpm is for 4 cylinder engine Features: Competitive price,screw thread structure Gauges front cover use stainless steel316Lfor long-term use even in acid-baseand humid environment IP67 waterproof and dustproof grade Stepper motors used for full range of stepping gauges,great feature with its less power consumption,longer life,higher precisionetc. With curved glass (with anti-fog function) With ultra-wide working voltage design (long-term operating voltage:9-32v,maximum up to:36v) Gauges have many kinds backlight color (redyelloworangegreenbluepurplewhite),customers can adjust any color that you like Customized color for stainless steel is provided Fast delivery time,better for releasing your pressure of stockage and liquidity There is a snap together with the harness connector,for best and firmly connected,in order that the gauges could work even in strongviberation,products can be used for theengines/generating units,ships,construction machinery,agricultural machinery,automotive modificationetc. InstallInstruction: Opening a hole in the panel (your cabin board and dashboard) with a diameter of 85mm,insert meterinto the hole,thepanel corresponding to the instrument panel is marked with a convex table,and open a small notch in this location,to ensure that there is at least 85mm (3 3/8") of the instrument panel at the back of the instrument After the instrument is mounted in the panel,screw down with a fixed ring Connect the wire,the instrument housing is directly connected to the 12/24v power supply Insert wire harness,firmly locked in the table 1pc x Tachometer 1pc x Wiring harness 1pc x Instruction manual