Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 5 - Jul 10
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For Your Every Summer RSVP, with Code: SUMMER15
Description
AutoMeter Multi-Purpose Gauge (4392)One of the most requested line additions in AutoMeter history, this Digital Stepper Motor Exhaust Pressure Gauge has been engineered to the highest standards of accuracy and durability. Precisely monitor your exhaust backpressure to maximize power and efficiency and ensure turbo longevity. Also ideal for cam tuning, includes a highly advanced 1 8" NPT Pressure Transducer, install kit and wiring harness for ease of installation. Data Logging is also
One of the most requested line additions in AutoMeter history, this Digital Stepper Motor Exhaust Pressure Gauge has been engineered to the highest standards of accuracy and durability. Precisely monitor your exhaust backpressure to maximize power and efficiency and ensure turbo longevity. Also ideal for cam tuning, includes a highly advanced 1/8" NPT Pressure Transducer, install kit and wiring harness for ease of installation. Data Logging is also possible thanks to an analog .5 - 4.5v output. An optional particulate filter is also available for enhanced sensor lifespan.
Features:
- 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system
- Autometers Race Proven Digital Stepper Motor Electric Instruments Provide Unmatched Accuracy While Keeping Hazardous Gases Outside Of The Vehicle
- Gauge kit includes 1/8in NPT stainless steel pressure transducer, copper tubing kit, wiring harness, mounting hardware, and detailed instructions for installation
- Includes data acquisition grade solid-state pressure transducer, providing unmatched accuracy and durability even in the harshest environments
- Recommended Particle Trap Kit (5375) available separately for increased lifespan of the pressure transducer and ease of gauge hardware maintenance
- The accuracy of digital stepper motor gauges is further increased by utilizing a self calibration sequence during power up
- Traditional incandescent lighting illuminates around the perimeter of the dial
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 2181 reviews
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Product Reviews
★★★★★ 5
Great product for rv
This is an excellent product. The front of our camper was very faded from the sun even though we keep it under a cover. After four coats, it looks like a different RV. We are going to do the entire camper. The difference is amazing. You will be so happy with the results. We would give it a 10 if possible.
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Reviewed in the United States on October 19, 2025
★★★★★ 5
Amazing fiberglass restoration.
So easy to use and fabulous results. A few years back I had tried Maguires products to restore the shine on a 5th wheel. That was so labor intensive and the results were struggled to achieve faded quickly. I hesitated to Poli Glow due to the cost and our prior attempts lackluster results. I was able to get the restoration kit at a discount on Black Friday through the stores website and tackled the camper with the temps between 60-90 as instructed. I bought 2 of those kits just to find out that due to the climate and UV exposure the number of coats I would need for the Poli Glow was going to exceed the amount I had on hand through the 2 restoration kits. So I had to scramble to buy another bottle of Poli Glow. Applying this product is just time consuming and not difficult. Make sure to properly prepare the surface before using poliglow. The whole system turn a badly oxidized camper into a shiny finish. I am truly shocked. Hopeful the results will last a while.
5th wheel camper 40 foot long.
I have used 3 poliglow bottles (12 coats), 1 bottle poli ox, 1.5 bottles of Poli wash (of course, not in that order). I potentially need 1 more bottle of Poli Glow to finish nose cone/basement area (basement area is still in good condition so may not do this area if I can get the nose cone with the remainder of the Poli glow I have.)
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Reviewed in the United States on January 19, 2026
★★★★★ 4
Worth the time and effort.
After proper surface prep and 6 applications, my badly sun damaged RV shined like new, with many compliments. However, after a few months under the cover, the fiberglass surfaces that were in contact with the occasionally wet cover in the Florida sun discolored badly, and will have to be wet sanded and the coating re-applied. Also, the polish does not hold up well where boat fenders rub against the coating, and it wears away in cockpit areas that are heavy hand traffic, like hatchways and around handrails.
Overall a decent product, I will probably re-apply in a couple seasons.
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Reviewed in the United States on September 23, 2025
★★★★★ 5
Brings old paint back to life.
Best product for fiberglass oxidation. Tried many different wax’s and compounds. Poly Glow did what the wax could not do.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
The beautiful shine!!!!
Wow so amazing!!!!! I have a 35 ft trailer you will need 2 bottles for two coats. Well worth the price.
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Reviewed in the United States on May 25, 2026
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