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Product Features:
-Be suitable for all kinds of tacho RPM 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 and dustproof grade
-Stepper motors used for full range of stepping gauges, great feature with its less power consumption, longer life, higher precision, etc.
-With curved glass (with anti-fogging function)
-With ultra-wide working voltage design( long-term operating voltage: 9-32V, Maximum up to: 36V (≤ 1 min)).
How to be setting Tach RPM Ratio?
1. Turn on the power supply first.
2. Press and hold the mode button for 3 seconds to enter the setting speed ratio mode. then adjust speed ratio from 1-300 according to your request.
3. After setting, Data is automatically saved.
4. Please note: If your sensor is installed on the flying wheel panel, the RPM ratio is equal to the number of gears of the engine; If the speed signal takes from W-Terminal, the RPM ratio is equal to the half of the number of poles.
5. Normally, When the engine at idle state, tachometer shows 600-800rpm that means speed ratio is correct. If not, you can turn down or turn up speed ratio to check RPM difference.
Package Includes:
1x Tachometer
1x Multi-plug socket
1x Installation Instruction
Heather Bolte Lewis
Reviewed in the United States on September 8, 2024
The seal did not last long. Water leaked inside and ruined it a year and a half after purchase.
Customer
Reviewed in the United States on August 30, 2023
Does not work. First thing is when you are setting the number of cylinders, the numbers cycle so fast it is hard to get it set right. After setting at the right setting the tachometer needle just bounces from 800 to 6000 rpm. Tried other setting but nothing works.
urbex
Reviewed in the United States on November 8, 2023
Seems to work well, but the response time is VERY slow. My 85HP Force is no powerhouse of a motor, but it will still get to 5,000RPM faster than this gets to 2,000. Fine for verifying cruise RPM, but not much else.
Bruce K.
Reviewed in the United States on March 30, 2022
Slow China shipping otherwise good for the money
H.H.
Reviewed in the United States on April 19, 2022
as the title says this product does not work off of the negative side of the ignition coil. I tried multiple different combinations in the 'speed ratio' settings and nothing would work. the needle would not settle down. it would just bounce all over the gauge. this gauge is strictly for connecting to the W terminal on an alternator. the instruction paper that comes with it is not the best either.
Christopher E Werth
Reviewed in the United States on February 18, 2021
Really nice tachometer especially since it is almost infinitely adjustable. My Force 85 HP outboard doesn’t have a standard impulse and I was limited to one or two tachometers from regular boat supply stores that would work. This matched my other gauges and will calibrate to any number of pulses per revolution. If I had any complaint, the sweeper needle is slightly delayed from the actual RPM but on a regular pleasure boat, it’s a non issue.
Max
Reviewed in the United States on September 2, 2020
The install was straight forward once I figured out the poorly translated instructions. It seems sensitive to noisy power from my outboard as it will occasionally restart and do a full sweep like it is just being powered on. This is more of an issue with my outboard than an issue with this gauge though.
christian s
Reviewed in Canada on September 19, 2020
Great item. All you need is a direct wire that goes straight fro m the negative terminal on the coil to the signal wire on the tachometer. This tachometer also allows you to make very wide range of adjustments so that the gauge will show the right rpm for different cylinders and signals. I bought a different gauge before this one that did not work for me as it only allowed to switch between 2,4,6,8 cylinders, and I had pertronix ignition which gives more pulses. This gauge allows minute settings on a range of almost 300 different settings which should cover any type of signal/pulse even if you have 12 cylinders etc.
Chris Blunt
Reviewed in Canada on July 10, 2020
Would not work as advertised, instructions are horrible, couldn't set up to a basic Marine system
michael w.
Reviewed in the United States on January 21, 2020
I still haven’t found the correct proximity sensor. Would be nice if they put better instructions
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