← 1-Sensor
— HGV & Trailer Brief
TPMS for Heavy
Goods Vehicles.
A UK-focused field guide for fleet managers: what TPMS is, the regulation that now
governs it, the suppliers worth knowing, real pricing — and exactly what DVSA looks
for at MOT.
Jul 2022
New trailer type-approvals require TPMS (EU)
Jul 2024
All newly registered trailers must be TPMS-equipped
R-141
UN ECE regulation defining commercial TPMS function
5-7 Yr
Typical sealed-lithium sensor battery life
— 01 / Architecture
What a fleet-grade TPMS actually is.
Type 01
Direct TPMS
Sensors mounted on or inside each tyre transmit live pressure and temperature data. The accuracy benchmark for heavy vehicles and the required architecture under R-
141.
Type 02
Indirect TPMS
Uses existing ABS wheel-speed
sensors to estimate pressure
changes via rotation. Lower precision uncommon on modern HGV fleets.
Type 03
TPRS / CTIS
Tyre Pressure Refill or Central Tyre
Inflation systems automatically
maintain set pressures. Recognised as functionally equivalent to TPMS under R-141.
— 02 / Regulation
UN ECE R-141 — now mandatory.
Aligned with the EU’s General Safety Regulation, R-141 requires direct, in-cab TPMS warnings on newly registered heavy commercial vehicles and trailers. UK approvals largely mirror this framework.
New HGV tractors
Must be TPMS-equipped from factory if registered after the implementation date.
Trailers & semi-trailers
Mandatory on new type approvals since Jul 2022 and on all new registrations from Jul 2024.
Older vehicles
No strict retrofit obligation — but best practice for DVSA inspections, insurance and uptime.
Equivalent systems
TPRS and CTIS that maintain regulated pressure count as compliant in place of a TPMS.
— Built for
Commercial-grade supplier landscape.
Fleets pursuing R-141 compliance should specify EBS-integrated hardware from established commercial suppliers — not consumer-
grade retail kits.
ZF Aftermarket — OptiTire™
OE and retrofit TPMS for trailers and fleets. WABCO / ZF
EBS integration, up to ~20 wheels, telematics-ready
(OptiLink, SCALAR).
Fleet · OE
Bridgestone — Tirematics
Fleet-grade TPMS with sensor sets and remote alerts for tractors and trailers. Entry pricing ~£175 trailer, ~£290 tractor.
Fleet · Telematics
Haldex · Knorr-Bremse · Aspöck
Trailer-OE EBS-integrated TPMS modules. Factory-fit, fully R-141 compliant, warnings transmitted to towing vehicle.
OE · Trailer
TyrePal Commercial (UK)
Retrofit kits for HGV, bus, coach and trailer — up to 22 tyres. Monitor TC215 from ~£95, full kits £629–£759 inc VAT.
Retrofit · UK
TyreWatch
Internal or external sensors for tractor + multi-trailer
combinations. Sensors persist through tyre changes.
Fleet · Retrofit
FleetService Pressure Check
Internal sensors, in-cab display and telematics integration for combinations of up to ~24 tyres.
Telematics
— 04 / Retail Pricing
Aftermarket snapshot.
Aligned with the EU’s General Safety Regulation, R-141 requires direct, in-cab TPMS warnings on newly registered heavy commercial vehicles and trailers. UK approvals largely mirror this framework.
Product
Use - Case
TST 507 Series 6 Flow-Thru
Heavy commercial · ~6 wheels
TP-81E Steelmate Commercial
Mid-range DIY kit
Snooper Tyre Pilot Kit
Light commercial · basic alerts
XTOOL TS100 PRO Sensors
Programmable sensor pack
6-Sensor Truck / Trailer Kit
Entry multi-wheel
VESAFE Wireless TPMS
Basic wireless monitor
Solar Truck & Trailer TPMS
Solar-powered entry kit
Avutrel HGV TPMS
Entry-level multi-wheel
⚠ Retail prices indicative · not certified for R-141 fleet compliance
— 05 / MOT & DVSA
Annual sensor replacement? No.
DVSA testers verify TPMS function — not calibration. A lit warning lamp or an inoperative system is a major defect. Sensors typically last 5–7 years and are replaced only on failure.
Do TPMS sensors need replacing every year?
No
Is TPMS checked at MOT / DVSA inspection?
Yes — function only
Will MOT fail if TPMS warning light is on?
Yes
Must older trailers be retrofitted?
No
Is sensor accuracy individually tested?
No
Typical commercial sensor lifespan
5–7 years
— Fleet enquiry
Specify R-141 compliant TPMS for your fleet.
Speak with our automotive engineering team about distribution, OE
programs and workshop integration — globally, in 48 hours or less.