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Quick Specs

  • Size:5" (127mm)
  • Type:Air-Core
  • Range:0-10,000 RPM
  • Lighting:Incandescent
  • Instructions: Download PDF


Getting great performance or saving money doesn’t have to be choice. Engineered by AutoMeter in Sycamore, IL, The Auto Gage line of instruments provide the best bang for the buck performance in the industry. For a fast street car or a weekend racer, Auto Gage provides levels of accuracy and durability unheard of in the price category. With countless wins in magazine comparison tests, the best value in gauges comes from exactly the place you’d expect it to. AutoMeter.
Feature Points
  • Traditional incandescent lighting illuminates the front of the dial
  • 12 and 16 volt compatible, well-suited with nearly every street car or race car electrical system
  • AutoMeter’s race proven air-core electric tachometers provide quick and accurate readings with a needle so responsive it can go from 0 - full scale in 333 milliseconds
  • Compatible with most 4, 6, and 8 cylinder engines (2 - 4 pulse per revolution ignition signals) with points, electronic, and most 12V high-performance racing ignitions.
  • Triage engine health and setup changes using Peak RPM Memory recall with one touch review. Commonly referred to as the 'tattle tale' in the racing world, this function allows racers to gain quick insights between rounds about wheel spin, gearing and gear changes.
  • Optional Shift Light support allows you to optimize use of your engine's power band and improve vehicle run performance and driver gear changes with a rapid response, high visibility user-programmable shift light.
Ships With
  • 3209
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DO you have a tach that you can hook up to a 3 cyl 2 stroke? A recall tach.

Asked by: donnie s987
We do not.
Answered by: Thomas From AutoMeter
Date published: 2022-05-10

can i hook this tach up to a 3 cyl. 2 stroke snowmobile engine

Asked by: donnie s987
This tachometer will not work in a snowmobile application.
Answered by: Jim from AutoMeter
Date published: 2022-04-28

Can this tach be turned over or spun in the bracket to mount under the dash?

Asked by: 67beetle
Yes, the bracket is fully removable and the tach can be rotated 360 degrees within the strap/bracket.
Answered by: Matt from AutoMeter
Date published: 2022-02-16

I have the 233902/6 memory tach, and was wondering if it can be retrofitted with an external shift light. I noticed shift point can be set using the 2 button method?

Asked by: smokey34
Yes, you would be able to attach a shift light to your tach. Something like the 5334 would be ideal
Answered by: Sarah from AutoMeter
Date published: 2021-11-12

do u have led bulb for autogauge

Asked by: Anonymous
Thank you for your question. This tachometer uses a T1-3/4 wedge based LED bulb. You can purchase one of the colored ones we offer or use any other t1-3/4" led bulb you may have.
Answered by: Zach from AutoMeter
Date published: 2019-08-28

I bought this tach and was trien to set it for a 4cylinder, by holding the button to set for the pulses and nothing is happening. The tach only going to 4k when running car. Can you help me?

Asked by: Rock
Thank you for your question. If your tach is only displaying 4k, I would recommend contact our support team so they can go through some troubleshooting with you. You can contact them at 866.248.6357 or
Answered by: Zach from AutoMeter
Date published: 2019-07-08

Can a shift light be added to this tach? 

Asked by: Aaron.e
Hi Aaron, thank you for the question. Yes, the 233902 features shift light functionality, but does not include the light. It is compatible with our many add-on light options like 5330, 5332, and 5334.
Answered by: Matt from AutoMeter
Date published: 2018-10-05

does this have a built in shift light

Asked by: randym
Hi Randy, thank you so much for contacting us. This particular tach does not include a shift light, though it is compatible with all of our shift lights and has a shift light connector. Hope this helps!
Answered by: Joseph At AutoMeter
Date published: 2018-08-01
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