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Longacre 50888 Air Density Gauge

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Comes with storage case. 60-120 percent density range.
Longacre 50888 Air Density Gauge

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Q & A

What's in the Box

Get precise carb jetting every race! This gauge from Longacre helps you set air/fuel ratios to compensate for changes in barometric pressure and air temperature. As air density changes with weather conditions, you should rejet your carb to keep to horsepower and sharp response.

Comes complete with case and jetting chart. 2-1/4" gauge face, 2-7/8" bezel O.D.

Cannot ship by air.

Air Density Gauge Installation Instructions


Item Details

Note: This item is not to ship via an air shipping method such as 1-day, 2-day, or 2-day economy shipping.

Customer Reviews

Rated 4.5 out of 5 by 4 reviewers.
4 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

Verified Purchaser
Shawano, WI 54166, USA
Product Rating

easy to read great product

February 23, 2015
Been contemplating getting a rad gauge happy I did now I can dial my carbs in for any condition
Yes, I recommend this product.
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Hamilton, New Zealand
Product Rating

A very well presented product.

September 26, 2013
The Longacre Air Density Meter has been an essential tool in my workshop and at the track. Not only on race day but on the days we tune an engine, we log the air density. When we go to the track and the air density has changed, whether it be because of weather or altitude, we change the tune according to the shift in air density. The padded case that the meter is housed is as rugged as is needed and the whole package can be regarded as a tool not a toy.
  • the meter can easily be "adjusted" if necessary.
  • non-air delivery is tedious especially overseas.
Yes, I recommend this product.
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grasston, mn
Product Rating

Great Gauge, Great Price

February 07, 2010
Was surprised to see it was a genuine Longacre gauge. I use it mainly for snowmobile speed runs and it works great. [...] great product, great price. You can't go wrong!
Yes, I recommend this product.
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Verified Purchaser
Hartland, WI
Product Rating

A must have tool for carb adjustments

July 18, 2011
Great for carb tuning.
  • Provides Accurate Readings
  • Improves Performance
Yes, I recommend this product.
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