Features:- Waterproof: IP 67- Excellent anti-fog function;- With curved glass (with anti-fog function). - 316 stainless steel frame with curved glass; - Easy installation through multi-plug socket connection; - (Red, Yellow, Orange, Green, Blue, Purple, White), customers can adjust any color you like - Tachometer applicable For cars/trucks/boats/diesel generator engines/gasoline enginesSpecifications:- Name: Tachometer- 7-color backlight- High precision- Size: 85mm- Signal: Pulse- Working voltage: 9-32VDC- Working current:Indication range:0-8000RPM[85MM diameter]0-7000RPM[85MM diameter]0-6000RPM[85MM diameter]0-4000RPM[85MM diameter]0-3000RPM[85MM diameter] Please note:We have 5 models of tachometers: 3000 rpm, 4000 rpm, 6000 rpm, 7000rpm, 8000 rpm (digital tachometer)Package included (pictured):1 X Marine Tachometer Table 1 X Cable 1 X Installation