AutoMeter Nitrous Oxide Pressure Gauge

AutoMeter Nitrous Oxide Pressure Gauges: Race-Proven Precision

When it comes to running a nitrous oxide system, guesswork is not an option. Proper bottle and line pressure directly determines how much power your engine makes — and whether it survives the run. That's where AutoMeter steps in. Founded in 1957, AutoMeter has spent more than six decades refining the science of motorsports instrumentation, and their nitrous oxide pressure gauges represent the pinnacle of that engineering heritage.

Why AutoMeter Leads in Nitrous Pressure Monitoring

AutoMeter's approach to nitrous oxide pressure gauges centers on one core philosophy: keep hazardous fluids outside the cabin while delivering the most accurate reading possible inside it. Their electric gauge designs use an advanced 1/8" NPT solid-state pressure transducer mounted at the source, sending a clean electrical signal to the gauge rather than running a live nitrous line through the firewall — a critical safety advantage for street and strip builds alike.

At the heart of many AutoMeter nitrous gauges is their Digital Stepper Motor drive system. Unlike traditional air-core movements, the stepper motor is digitally controlled by an onboard microprocessor, and accuracy is further enhanced by a self-calibration sequence that runs automatically at every power-up. The result is a gauge that reads quickly, holds steady under vibration, and doesn't drift over a long run.

Product Lines to Know

AutoMeter offers their nitrous pressure gauges across several well-known instrument series, giving racers and enthusiasts a choice of aesthetics without sacrificing performance:

• Sport-Comp & Sport-Comp II — A staple of the drag racing world, these gauges deliver full 0–1600 PSI range coverage with stepper motor precision. The Sport-Comp II adds Peak & Warn functionality, allowing drivers to set alert thresholds for over- or under-pressure conditions.
• Ultra-Lite Digital — Designed for weight-conscious builds, the Ultra-Lite features AutoMeter's E-Z View Digital LED display system, which maximizes readability and minimizes distracting high-speed digit changes at a glance.
• Cobalt Digital — Offering the same solid-state transducer technology in a sleek black-face presentation, Cobalt gauges are popular in modern performance builds where a blacked-out dash aesthetic is key.
• Phantom (Mechanical) — For setups requiring a mechanical read, the Phantom series nitrous gauge is threaded for -4AN fittings, allowing direct integration into a nitrous line with minimal adapters.

Built for the Track, Ready for the Street

Every gauge kit AutoMeter ships includes a stainless steel 1/8" NPT pressure transducer, a direct plug-in wiring harness, and detailed installation instructions — everything needed to get up and running without sourcing extra hardware. Data logging is also supported on select models via a 0.5–4.5V analog output, making these gauges compatible with AutoMeter's broader data acquisition ecosystem.

AutoMeter manufactures their instruments at a TS and ISO-certified facility in Sycamore, Illinois, where every circuit board is tested for 100% compliance before assembly. Racers at every level — from NHRA drag strips to circle track ovals — have trusted AutoMeter instrumentation for generations, and their nitrous oxide pressure gauges carry that same standard of quality to one of the most demanding monitoring tasks in performance motorsports.

All AutoMeter high performance products are backed by a 12-month warranty covering defects in materials and workmanship, giving you confidence in your investment whether you're building a weekend bracket car or a serious competition machine.