HD 2'' 52mm Pointer Tachometer 3000 6000 8000 RPM Tachometer with Red Backlight Suitable for Car Motor Boat Yacht RV 12V/24V Please Note We have two options Option 1: 1X RPM Sensor Option 2: 1X 52mm tachometer tachometer does not include sensor, sensor does not include tachometer, thank you for your understanding. Option 1 1X Tachometer Option 2 1X 52mm Tachometer Features: - 316L stainless steel, can be used for a long time even in acid, alkali, humid environment - IP67 waterproof Dustproof Rating - Stepper motors used in a full range of immersion meters, featuring low power consumption, long life and high accuracy. - With curved glass (with anti-fog function) Specifications: 1. Name: Tachometer 2. Red backlight 3. High precision 4. Voltage: 12V/24V5. Installation diameter: 52mm6. Working current: 100 MA7. Speed ratio: 1~300 adjustable 8. Function: Current tachometer/RPM and hour 9. Operating mode: LCD display, stepper motor 10. Tachometer suitable for car/truck/boat/diesel generator engine /Gasoline engine Indicating range: 0-3000RPM [52MM diameter] 0-4000RPM [52MM diameter] 0-6000RPM [52MM diameter] 0-7000RPM [52MM diameter] 0-8000RPM [52MM diameter] M16 sensor M18 Please confirm the parameters you need before purchasing the sensor, thank you Please note: We have 6 models of tachometer: 3000 rpm, 4000 rpm, 6000 rpm, 7000 rpm, 8000 rpm, (digital tachometer)Package includes (pictured): 1 x Marine tachometer 1x Multi-plug socket 1 x Mounted 52mm boat tachometer Tach sensor [1]. Name: Tachometer sensor[2] used for gear speed measurement[3] combines the advantages of signal stability, wide operating temperature range, small size, simple assembly, etc.[4] Signal duty cycle: 475%[5] Output signal: Sine wave [6] Operating temperature: -40 to 85C [7] Inductance distance: less than 1mm [8] Tooth module: 2~6 [9] Connection method: two-wire connection [10] Protection level: waterproof IP67 Please note : Please note that we have 2 models of sensor sizes: 78.2mm*18mm (length*width), 78.2mm*16mm (length*width) About