Product data sheet

AiR TP-4 unit specification.

One sealed graphite enclosure, four independent air channels, on-board inference and a single 230V feed. This is the full engineering specification of the production unit, subsystem by subsystem.

Pricing Installation Warranty and support

Simulated real-world data being used for demonstration purposes

/Model AiR TP-4/4 independent air channels/+/-0.05 bar delivered accuracy/48 dB(A) at 1m/230V 32A single feed/IP54 enclosure, IK10 glass/40 TOPS edge inference/Motorcycle and light commercial modes/Model AiR TP-4/4 independent air channels/+/-0.05 bar delivered accuracy/48 dB(A) at 1m/230V 32A single feed/IP54 enclosure, IK10 glass/40 TOPS edge inference/Motorcycle and light commercial modes

Channels per unit

Each tyre corrected on its own path

Delivered accuracy

+/-0.00 bar

Verified at end-of-line calibration

Four-tyre correction time

0 s

Typical car, 0.4 bar mean deficit

Noise at one metre

0 dB(A)

Oil-free scroll compressors, lined pod

Specification

The complete data sheet.

Grouped by subsystem. Figures are production-intent values for the TP-4 unit and are verified per machine at end-of-line test.

Model designationAiR TP-4 (four-channel forecourt unit)

Height2,140 mm including light crown

Width980 mm at widest point

Depth620 mm, 1,180 mm with service doors open

Dry mass298 kg

Installed mass on plinth342 kg including anchors and ballast

Enclosure3 mm 5251 marine-grade aluminium monocoque, graphite anodised

Base frame6 mm laser-cut steel, hot-dip galvanised, four M16 anchors

Display32 in portrait LCD, 1,500 nit, optically bonded

Front glassChemically strengthened, anti-glare and anti-reflective, IK10

TouchProjected capacitive, glove and wet-finger capable

Hose docksFour, two per side, lit cyan light guides

Hose reach3.5 m per channel, spring return with tug release

AccessibilityPrimary controls between 900 mm and 1,300 mm, step-free approach

Colour and finishDeep Graphite body, AiR Cyan accent, Safety Green status ring

Inside the unit

Four partitions, serviced independently.

Acoustics at the bottom, air in the middle, compute behind the display, hoses at the sides. A service visit touches one partition without disturbing the others.

Front elevation of the AiR TP-4 unit — Front elevation: 32 in portrait display, status ring and four docked hoses.

Internal layout of the AiR unit showing silent compressors and air train — Internals: acoustic pod, receiver and dryer, four-channel manifold and the inference stack.

Silent by design

Oil-free scroll compressors on isolators inside a lined, ducted pod. No hammering piston noise and no forecourt ring main.

48 dB(A) at 1m

Clean, dry air

Refrigerant dryer and three filtration stages deliver class 2 air, protecting valves and the tyre alike.

ISO 8573-1 class 2

Independent channels

Four inflate and deflate pairs on a brass manifold with per-channel isolation, so one seized valve never stops a session.

4 x closed loop

Local intelligence

Recommendation and anomaly models run on the unit. Connectivity improves the fleet view but is never required to serve a driver.

Offline capable

Variants

One platform, three configurations.

All variants share the same pneumatic core, control stack and mesh identity. They differ in siting, payment and canopy options.

Standard unit

TP-4 Forecourt

The reference machine for fuel and charging forecourts. Contactless payment, free-vend option, four channels, plinth mounted.

Footprint980 x 620 mm

Feed230V 32A

Sessions per dayUp to 120

Depot configuration

TP-4 Fleet Depot

Free-vend by default with driver or vehicle identification, higher duty compressors and a hardened depot hose set for daily commercial use.

Feed230V 32A or 400V option

Sessions per dayUp to 200

IdentificationFob, plate or telematics

Compact two-channel

TP-2 Urban

Two-channel unit for car parks, motorcycle bays and kerbside sites where space is tight. Same accuracy and the same mesh role.

Footprint720 x 560 mm

Feed230V 16A

Channels2

Specification questions

What buyers ask first.

No. Both compressors, the receiver, the dryer and the filtration train sit inside the enclosure. A site runs one 230V 32A radial to the plinth and nothing else.

Each transducer is two-point calibrated at end of line and re-verified at every service visit. The unit also cross-checks channels against each other after every session and flags drift before it exceeds 0.03 bar.

The session completes as normal. Vehicle and pressure data are cached on device, the record is signed locally and pushed when the link returns.

Yes. Motorcycle mode drops to a low-flow ramp with a 90 degree chuck and two channels. Light commercial mode extends the limit to 6.5 bar and applies a load-based rear differential.

The unit is sited outside hazardous zones as defined by the site's DSEAR assessment, and the electrical installation follows BS 7671 with the forecourt zoning respected. Pressure parts are CE marked under PED.

Pricing and commercial models

Unit price, subscription, revenue share and total cost of ownership over five years.

Open

Installation and commissioning

Site survey, plinth, electrical works and the one-day commissioning sequence.

Open

Warranty and support

Three-year cover as standard, response times, spares holding and extended plans.

Open

Evidence base

Standards the hardware and control logic answer to

The pneumatics and control stack are designed against existing type-approval and measurement frameworks rather than an internal standard.

Approved pressure tables are the authority

Target selection is bounded by ETRTO load-capacity tables and the vehicle placard. The controller cannot request a value outside them.²⁰²⁵

TPMS interaction is defined

UN Regulation 64 sets the European TPMS framework, including the warning threshold the machine deliberately works inside.²⁰¹⁶

Performance references are pressure-specific

Rolling resistance, wet grip and rolling sound are measured under UN R117 and ISO 28580 at defined pressures, so those pressures define the machine's target.^2016,2018

Labelling regime alignment

EU 2020/740 governs the label a consumer sees. Delivering the labelled performance requires delivering the labelled pressure.²⁰²⁰

Measurement physics

Sensor placement, settle time and temperature allowance follow the gas-law and contact-mechanics treatment in the standard references.^2006,1981

Cited on this page

European Tyre and Rim Technical Organisation (2025). ETRTO Standards Manual - load capacity and inflation pressure tables. ETRTO, Brussels, annual edition.
United Nations Economic Commission for Europe (2016). UN Regulation No. 64 - Temporary-use spare units, run-flat tyres and tyre pressure monitoring systems. UNECE World Forum for Harmonization of Vehicle Regulations.
United Nations Economic Commission for Europe (2016). UN Regulation No. 117 - Tyre rolling sound emissions, wet grip and rolling resistance. UNECE.
International Organization for Standardization (2018). ISO 28580: Passenger car, truck and bus tyre rolling resistance measurement method. ISO.
European Union (2020). Regulation (EU) 2020/740 on the labelling of tyres with respect to fuel efficiency and other parameters. Official Journal of the European Union.

These are published third-party sources, not AiR simulation. The full bibliography - peer-reviewed papers, reference monographs, government reports, international standards and official statistics - lives in the science lab.

Open the research and full bibliography