85mm Marine Tachometer Car Truck Boat Tacho Gauge with Hour Meter Waterproof 8000 RPM 12V 24V

Be suitable for all kinds of tacho sensors, and display the rotation speed of the engine.
Use moving-magnet principle to drive the needle, featuring good endurance and anti-vibration.
IP67 waterproof , rainproof, dust proof , anti fogging??Indicating Range: 0-8000RPM
Come with no speed sensor , Speed sensor Mounting Thread has 2 sizes : M16 (Asin:B079GXS9CF) ??M18(ASIN:B079GWJDH4) , it needs to be ordered separately
Speed ratio Setting : 2 stroke engine , the speed ratio equal to cylinder number(For example: 2 stroke,2 cylinder engine, speed ratio is 2, H-002.0); 4 stroke engine, the speed ratio equal to a half of cylinder number( For example: 4 stroke , 4 cylinder engine, speed ratio is 2, speed ratio is 2, H-002.0)
Product Description
Description:
-Fixing dimension: 85mm(3-3/8″)
-Indicating Range: 0-8000RPM
-Speed Ratio: 1-10 adjustable
-Working Voltage: 12V/24V
-Backlight:red /br> -Operation mode: LCD display, stepper motor
-Protection grade is IP67, the whole body is completely waterproof;
-Excellent anti-fogging function;
-316 Stainless steel bezel with curved glass;
-Convenient Installation by multi-plug socket connecting way;
Package Includes:
1x Tachometer
1x Multi-plug socket
1x Installation Instruction