Stepper motors used for full range of stepping gauges, great feature with its less power consumption, longer life, higher precision, etc. Snapklik.co : Geloo 85 Boat RP Tachoeter Gauge 0-6000 RP... Feature: -Fixing dimension: 85mm(3-3/8) -Indicating Range: 0-8000RPM -Speed Ratio: 0., 5-250., 0 adjustable -Working Voltage: 12V/24V - Red backlight -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; Come with: 1x GPS Tachometer 1x Power cable 1x Installation Instruction Geloo 85mm Marine Tachometer Gauge Waterproof Boat RPM Tachometer Outboard 0-8000 RPM Tacho 12V 24V Marine Tachometer 85mm Marine Tachometer With LCD Hour Meter 0-8000 RPM Red Backlight 12V/24V From Tachometer - Price 26.26 8000 RPM Tachometer With Hour Meter It is better to use with speed sensor, don't directly connect the gauge to trigger coil. KUS Tachometer Gauge with Hourmeter Boat Truck Car... – Grandado IP67 waterproof , rainproof, dust proof , anti fogging,Indicating Range: 0-8000RPM Use moving-magnet principle to drive the needle, featuring good endurance and anti-vibration.
