Prisma HPM5 Digital Tire Pressure Gauge — Motorsport Precision Gauge with App

The Prisma HPM5 Digital Tire Pressure Gauge is a fifth-generation professional racing tyre pressure gauge designed with and for motorsport professionals. Used across MotoGP, Superbike, GT Endurance, karting, and circuit racing, the HPM5 delivers the accuracy and reliability demanded at the highest levels of competition — with a pressure resolution of 0.001 BAR / 0.01 PSI and a range of 0–7 BAR (100 PSI).

The HPM5 connects wirelessly to the dedicated Prisma Electronics app (iOS and Android), allowing you to download session data, export to Excel or PDF, share with team members via the cloud, and configure the instrument quickly and intuitively — all from your phone. It is a wireless tyre pressure gauge with app connectivity, session logging and professional-grade repeatability.

Why Professional Teams Use the Prisma HPM5

The HPM5 is the motorsport tyre pressure gauge of choice at the pointy end of the sport — used in MotoGP and Superbike pit lanes, GT Endurance garages, and karting grids worldwide. What sets it apart from consumer gauges:

• 0.001 BAR resolution — sees pressure changes a workshop gauge cannot detect, which matters when a quarter-PSI moves handling
• Repeatable, calibration-free readings — the instrument auto-calibrates at every power-up, so numbers compare fairly between tyres, sessions and crew members
• Pit-lane workflows built in — Pressure OFFSET and Pit-Stop modes are designed for the pit lane and starting grid, not adapted from a garage tool
• Session data you keep — a tyre pressure logger with app export, so setup decisions come from data instead of memory

A Kart Tyre Pressure Gauge Built for the Grid

Karting is where Prisma Electronics is most at home. The HPM5 is a fixture on kart grids and in kart shops worldwide, from club racing to national and international competition, and it is one of the most trusted karting tyre pressure gauges in the paddock. Kart tyres live in narrow pressure windows, so the HPM5's 0.001 BAR / 0.01 PSI resolution matters even more here than on a race car — small changes move the handling of a kart immediately. The low-loss aluminium chuck keeps air in the tyre while you read it, and the 50-session memory means you can track pressures across a full race day of heats and finals. Pair it with the rest of our karting race equipment range for helmets, kartwear, data and setup gear.

Key Specifications

• Pressure resolution: 0.001 BAR / 0.01 PSI
• Pressure range: 0–7 BAR (100 PSI)
• Wireless app connectivity (iOS & Android)
• Aluminium tyre chuck — designed by Prisma Electronics for measurement without air loss
• Quick-Function buttons for fast mode switching
• Session data logging and export (Excel / PDF)

Smart Operating Modes

Pressure OFFSET

Set an offset value to hide the actual tyre pressure — ideal for the pit lane or starting grid when you need to keep your exact pressures confidential from competitors.

Pit-Stop Function

Measure and record entry pressure, then adjust to target pressure during a stop — without pressing any buttons. Designed for fast, accurate pit lane workflows, making the HPM5 a true pit lane tyre pressure gauge for endurance and circuit crews.

P/T Function (Pressure / Temperature)

Automatically sequences through tyre pressure and temperature measurement at three points (outer, middle, inner) in a single workflow. Works with compatible pyrometer accessories for kart tyre temperature and race car tyre temperature measurement alike.

App Integration

Download and review session data, export reports, share with engineers and team members via cloud, and configure instrument settings — all through the Prisma Electronics app.

HPM5 Model Comparison

Also available: Prisma HPM4 Digital Tyre Pressure Gauge — the previous generation, still widely used in karting and club motorsport.

Accessories

• Prisma ABS Storage Case — protect your gauge between sessions
• Prisma Replacement Hose with Michelin Air Chuck

Why Buy From Harris Race Radios?

• Official NZ Dealer for Prisma Electronics — genuine factory stock, full manufacturer warranty
• Active motorsport engineers who use these tools in our own race cars and karts
• NZ stock held locally for fast dispatch, with shipping to Australia
• Technical support before and after you buy — help choosing the right HPM5 configuration for your series or category
• Race-proven products across karting, circuit racing, rally and endurance
• Talk to real race engineers — see our Expert Motorsport Advice page for comms, data and setup guidance

Authority & Expertise

Harris Race Radios is the Official NZ Dealer for Prisma Electronics — New Zealand's most experienced motorsport data and measurement specialist. Every Prisma product we stock is genuine factory stock, backed by full manufacturer warranty and supported by our team of active motorsport engineers.

• Rex Harris — Qualified Radio Telecommunications Engineer, Approved Radio Certifier for NZ RSM and AU ACMA, motorsport experience since 1975 starting at the Marlboro Series Grand Prix.
• Aaron Harris — Active racing driver and race engineer. Barcelona 24 Hour 1st in class (2013), Bathurst 1000 & 12 Hour competitor, BMW Race Driver Series Champion (2011), race engineer for Earl Bamber Motorsport, TekworkX, Matt Stone Racing, Porsche Carrera Cup Australia/Asia-Pacific/NZ. MSNZ Licence Examiner for helmets, racewear, FHR/HANS.

NZ stock held locally for fast dispatch. Need help choosing the right HPM5 configuration for your series or category? Contact Aaron: +64 27 449 9654 or aaron@harriscomms.co.nz.

Frequently Asked Questions

What is the Prisma HPM5?

The Prisma HPM5 is a fifth-generation professional digital tyre pressure gauge designed for motorsport. It offers 0.001 BAR / 0.01 PSI resolution, wireless app connectivity, and advanced operating modes including Pit-Stop and P/T functions used in MotoGP, Superbike, GT Endurance, karting, and circuit racing.

Is the HPM5 a good kart tyre pressure gauge?

Yes — karting is one of the HPM5's core sports. Kart tyres live in narrow pressure windows, so the 0.001 BAR / 0.01 PSI resolution and low-loss aluminium chuck make it one of the best tyre pressure gauge options for kart racing, from club days to national competition. See our full karting race equipment range.

Does the HPM5 measure tyre temperature?

The base HPM5 measures pressure only. To add temperature measurement, choose the HPM5 + Needle Pyrometer, HPM5 + IR Pyrometer, or HPM5 + Dual Pyrometer variants.

What is the Pressure OFFSET function?

The Pressure OFFSET function lets you set a hidden offset value so the display shows a different number to the actual pressure. This is used in the pit lane or on the grid to keep your exact tyre pressures confidential from competitors.

Does the HPM5 connect to an app?

Yes. The HPM5 connects wirelessly to the Prisma Electronics app (iOS and Android), allowing you to download session data, export to Excel or PDF, share with team members via cloud, and configure the instrument remotely.

What is the difference between the HPM5 and HPM4?

The HPM5 is the fifth-generation model with wireless app connectivity, improved operating modes, and a new aluminium tyre chuck. The HPM4 is the previous generation — still accurate and reliable, and a popular choice for karting and club motorsport at a lower price point.

Does Harris Race Radios stock this in NZ?

Yes — we are the Official NZ Dealer for Prisma Electronics and hold NZ stock for fast local dispatch.