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Quick Specs


Designed for high output stereo systems but just as at home on any high current electrical consumer in your vehicle, the AutoMeter Digital Amp Current gauge precisely monitors power along a line using an inductive pickup for safe, accurate measurement of the demand being placed on your electrical system. Rated for up to 250 amps, this gauge is perfect for even the most extreme applications.
Feature Points
Ships With
  • Yes
  • Wire Harness
  • 2230
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Do you have a gauge like this with a white background and red text?

Asked by: Matt A
No, this is a very unique product and not available in any other style, color, or design.
Answered by: Thomas From AutoMeter
Date published: 2023-02-22

So few true ammeters vs battery charge/discharge gauges exist. I want to monitor entire current demand. Yours looks great too - ordering one. Question: is there a choice of bezel color? Chrome vs Black?

Asked by: Nick15
This gauge is only sold as shown, with the polished bezel.
Answered by: Jim from AutoMeter
Date published: 2022-10-21

Is this compatible with a 24 Volt system?

Asked by: Anonymous
This gauge is designed for 12 volt systems.
Answered by: Jim from AutoMeter
Date published: 2022-08-31

I have multiple accessories that I run off an auxiliary battery when my vehicle is off.  Can this gauge be wired in a way to monitor overall power draw of these accessories?

Asked by: TDHH
As long as the cable coming off the battery to your devices passes through the inductive pickup, our gauge will display current draw.
Answered by: Jim from AutoMeter
Date published: 2022-06-23

I recently bought this ammeter, but it is too small to fit in the vent. Do you sell a cup that will hold it in the vent?

Asked by: oslintw
Hi, We do have a cup for this gauge, see below. But it obviously has to be larger than the gauge in order for the gauge to fit into it. See attached: Thanks, Jim
Answered by: Jim from AutoMeter
Date published: 2020-05-01

I have recently replaced several batteries and alternators (failed without warning). I have just installed a new high output alternator and will be installing another new battery. Can this ammeter be used to monitor my car's overall charging system?

Asked by: oslintw
Hi, Our 6390 Will monitor the output of your alternator, or any DC current up to 250 amps. You will simply route the alternator wire through the inductive probe included with this gauge. Thanks, Jim
Answered by: Jim from AutoMeter
Date published: 2020-05-04

How long is the transducer cable for the digital amp meter?

Asked by: jay_B
Thank you for your inquiry. The probe wire is 20 feet long.
Answered by: Jim from AutoMeter
Date published: 2020-02-18

Will 1/0 wire fit the inductive pickup? or what is the maximum wire ga. to be used with this?

Asked by: Walley
Thank you for your inquiry. The inductive pickup will accept 1 gauge wire. It can accommodate wire up to 5/8" in diameter.
Answered by: Jim from AutoMeter
Date published: 2020-05-04
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