ELING 52mm Tachometer Meter 0-3000RPM 0-4000RPM 0-6000RPM 0-7000RPM 0-8000RPM with Red Backlight 12V 24V for Car Boat Motorcycle

Please note: There are different options for sensors and gauges in the link. Each option is marked with a name and a picture. There are some different tachometer range options for gauges in the link.Each option is marked with a name and a picture. Please confirm whether the option you ordered is the product you need. Thank you. -Suitable for all vehicles and off-road vehicles-316L stainless steel for long-term use even in acid-base, humid environment-IP67 waterproof and dust-proof grade-Stepper motors used for full range of steeping gauges, great feature with its less power consumption, longer life, higher precision, etc.-With curved glass (with anti-fog function)--Backlight color: 7 Backlights available (red, green, blue, white, yellow, cyan, purple)--Functions: current RPM and adjustable hour--Indicating Range: 0-3000RPM  0-4000RPM  0-6000RPM  0- 7000RPM  0-8000RPM-- Speed ratio:1.0-360--Operation mode: LCD display, stepper motor--For Car /Truck/ Boat /Diesel Generator Engine /Gasoline Engine1x Tachometer  1x Multi-plug socket  1x Installation InstructionBe used for gear rotation speed measurementCombining the advantages of stable signal, wide range of operating temperature, small size, simple assembly, etc.It covers a wide range of measurement, and it is able to measure the zero-rotation speed-M161.5 (2-wires)Operating temperature: -40 ~85℃Output signal: sine waveSignal duty factor: 47±5%Inductance distance: less than 1mmTooth module: 2~6Connecting way: two wiresProtection rank: IP65Length: L=100MM L1=80MM-M161.5/M181.5 Holzer Tacho (3-wires)Operating temperature: -40 ~85℃Output signal: square waveInductance distance: less than 2mmOperating voltage: 8~32V with polarity protectionConnecting way: three wiresProtection rank: IP65Length: L=80MM L1=70 / L=80MM L1=60MMM181.5   M16*1.5Operating Temperature: -40 to 85℃Output Signal: Sine WaveSignal Duty Factor: 47±5%Inductance Distance: Less than 1mmTooth Module: 2~6Connecting Way: Two Terminals connection