Speed Control

Speed Limiter Systems

GPS-enabled variable speed limiter technology that actively improves road safety, reduces the environmental footprint and improves vehicle performance.

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Autokontrol

The world's leading speed management systems

Autokontrol is internationally recognised as the world's leading speed management systems manufacturer and supplier. Autokontrol products actively improve road safety, reduce the environmental footprint and improve vehicle performance.

Designed and built in the UK, at our state-of-the-art facility in Chorley, to the highest quality standards and specifications. Available for every type of vehicle, equipment and plant - petrol, diesel, hybrid and all-electric - the range of products covers all eventualities.

Visit AutoKontrol.co.uk to learn more.

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General Use

Speed limiting for duty of care and fuel saving

Speed limiting may be imposed by employers as a means of fuel saving, reducing emissions or as part of their duty of care requirements. Employers have a responsibility, under various National Health and Safety Executive guidelines, to actively manage health and safety in the workplace, including vehicles. In a time when duty of care and health and safety are top of most company agendas, the geo-fenced limiter provides the answer.

Applications

High-risk area speed limiting

In addition to general road usage, Autokontrol systems are ideal for high-risk areas where controlling vehicle speed protects people and property.

Airport speed limiting

Minimise the risk of collision with crew, passengers and moving vehicles such as aircraft towing trucks, mobile aircraft steps, fuel tankers, baggage trucks and emergency vehicles.

Urban area speed limiting

Control speed in areas with large numbers of pedestrians, cyclists and vehicles. Cities, towns, shopping centres and retail parks are often areas where incidents are frequent.

Logistics speed limiting

Speed limiting at bus stations, distribution centres and seaports, where loading and unloading operations require vehicle manoeuvring in confined spaces near pedestrian workers.

How It Works

Automatic geo-fenced speed control

The system empowers the employer to designate their own high-risk areas in addition to our existing and continually updated database of road speed limits. These are pre-loaded as geofences into the Geocontrol device. Each geofence comprises detailed latitude and longitude data which can be refined to cover an area of any size and shape.

As an example, a vehicle visiting an airport with the perimeter plotted in the Geo unit will automatically reduce to the required speed as soon as it passes through the entrance gates, and on exiting reverts back to the normal speed.

The Range

Speed limiters for every throttle system

From cable-throttle to Drive-By-Wire, SENT and GPS geofenced control - a compliant, EU/ECE R89 approved solution for every vehicle in your fleet. Each unit is designed and manufactured in the UK by Autokontrol, part of the Scorpion Group.

Drive-By-Wire (DBW) Speed Limiter

Our flagship electronic speed limiter for modern vehicles with drive-by-wire throttle systems. Precision control, tamper-proof design, CAN bus integration.

Download the full datasheet (PDF)

Regulatory Compliance

Meets all UK, EU, and international speed limiter requirements. EU/ECE R89 type approved for goods vehicles over 3.5 tonnes and passenger vehicles with 8 or more seats.

Fuel Savings

Reducing maximum speed by just 10mph can save 10-15% on fuel costs. For a fleet of 50 HGVs, this represents tens of thousands of pounds annually.

Safety

Speed is a factor in 24% of fatal road accidents. Speed limiters actively prevent speeding, protecting drivers, passengers, and other road users.

Insurance Reduction

Many fleet insurers offer 5-15% premium reductions for vehicles fitted with approved speed limiters. The device typically pays for itself within months.

Tamper Resistance

Tamper-resistant sealing prevents unauthorised modification. The system detects and records any attempt to bypass or disable the speed limiter.

Universal Compatibility

Compatible with virtually all commercial vehicles - HGVs, LCVs, buses, and specialist vehicles. Works with both 12V and 24V electrical systems.

Technical Specifications

Product Name	Drive-By-Wire (DBW) Speed Limiter, by Autokontrol
Technology	Electronic Drive-By-Wire throttle signal interception
Speed Range	Adjustable from 10km/h to 130km/h
Speed Accuracy	+/- 1km/h
Power Supply	12V DC or 24V DC (auto-sensing)
Current Draw	Less than 50mA standby, less than 200mA operating
Operating Temperature	-40°C to +85°C
Speed Input	VSS (Vehicle Speed Sensor) or CAN bus
Enclosure	IP67 rated, tamper-resistant sealed
Type Approval	EU/ECE R89
Certifications	UTAC, TUV, VCA
Vehicle Applications	HGV, LCV, bus, coach, specialist vehicles
Warranty	Two-year manufacturer's warranty
Manufacturing	Chorley, Lancashire, UK

Compatible Vehicles

DAF CF / XF
MAN TGX / TGS
Mercedes Actros / Atego
Scania R / G / P Series
Volvo FH / FM / FE
Iveco Stralis / Eurocargo
Renault T Range / D Range
Ford Transit / Transit Custom
Mercedes Sprinter / Vito
Volkswagen Crafter / Transporter
Iveco Daily
Renault Trafic / Master
Peugeot Boxer / Expert
Citroen Relay / Dispatch
Alexander Dennis Enviro
Optare Solo / Versa
Wrightbus StreetVite
Volvo B-Series
Mercedes Citaro

SENT Speed Limiter

Speed limiter for the latest generation of vehicles using SENT (Single Edge Nibble Transmission) throttle signals. Future-proof speed control for Euro VI+ and beyond.

Download the full datasheet (PDF)

What happens if I fit a DBW limiter to a SENT vehicle?

It won't work. The DBW limiter expects a PWM or analogue signal. A SENT vehicle transmits digital nibbles that the DBW unit cannot interpret. You will get either no speed limiting or engine fault codes. Always verify your vehicle's throttle protocol before ordering.

Can the SENT limiter be retrofitted to older vehicles?

The SENT limiter is designed for SENT-protocol vehicles. For older vehicles with analogue or PWM throttle signals, use our DBW Speed Limiter. For cable-throttle vehicles, use the System 80 Speed Limiter.

Is the SENT limiter more expensive than the DBW?

Pricing is comparable. The SENT limiter uses more advanced signal processing hardware, but we maintain competitive pricing across all product lines. Request a quote for your specific fleet requirements.

Technical Specifications

Product Name	SENT Speed Limiter, by Autokontrol
Protocol	SENT (SAE J2716) - also supports PWM fallback
Throttle Type	SENT sensor (digital)
Speed Setting Range	20-120 km/h (factory-set)
Speed Accuracy	± 1 km/h at set speed
Response Time	< 1 ms
Power Supply	Vehicle 12V / 24V DC
Operating Temperature	-40°C to +85°C
Tamper Protection	Tamper-evident seal with unique serial number
Certifications	EU/ECE R89, UTAC, TÜV, VCA
Typical Installation Time	90-120 minutes
Warranty	2 years manufacturer's warranty
Designed & Manufactured	Chorley, Lancashire, UK

Compatible Vehicles

DAF - XG, XG+, XF (2021+), CF (2021+)
Mercedes - Actros MP5, Arocs (2021+), new Atego
Scania - Super range (2021+), all new-generation trucks
Volvo - FH, FM, FMX (2021+), FE/FL (2022+)
MAN - TGX, TGS, TGL (2020+ new generation)
Iveco - S-Way, new Daily (2022+)
Renault - T High, T, D, C range (2021+)

System 80 Speed Limiter

The proven mechanical speed limiter for cable-throttle vehicles. Robust, reliable, and trusted worldwide for decades.

Download the full datasheet (PDF)

Unmatched Reliability

With no electronic components, the System 80 is immune to the electrical failures, water ingress, vibration damage, and software glitches that can affect electronic speed limiters. It operates in extreme heat, extreme cold, dust, and wet conditions without degradation. This makes it the preferred choice for vehicles operating in harsh environments - construction sites, quarries, mines, agricultural land, and developing markets with limited technical support infrastructure.

The Simplest Installation

A trained installer can fit a System 80 in under 90 minutes on most vehicles. The installation requires no specialist diagnostic equipment, no laptop, no CAN bus configuration, and no ECU programming. The unit is installed inline with the existing throttle cable - a straightforward mechanical procedure that any competent vehicle technician can perform.

Lowest Total Cost of Ownership

No firmware updates. No annual software licences. No calibration drift requiring recalibration visits. No battery replacements. The System 80's maintenance requirement is limited to periodic inspection of the cable linkage and tamper seal - typically aligned with the vehicle's existing service schedule. For fleet operators managing hundreds or thousands of vehicles across multiple countries, this simplicity translates directly into lower operating costs.

Globally Certified

The System 80 is type-approved under EU/ECE Regulation R89 and holds certifications from UTAC (France), TÜV (Germany), and VCA (United Kingdom). These approvals are recognised by enforcement agencies across Europe, the Middle East, Africa, and Asia - making the System 80 a single product that can be deployed across an international fleet without requiring different hardware for different territories.

Technical Specifications

Product Name	System 80 Speed Limiter, by Autokontrol
Operating Principle	Mechanical throttle cable restriction
Throttle Type	Bowden cable (mechanical)
Speed Setting Range	20-120 km/h (adjustable at installation)
Speed Accuracy	± 1 km/h at set speed
Power Supply	None required (purely mechanical)
Operating Temperature	-40°C to +85°C
Tamper Protection	Tamper-evident seal with unique serial number
Certifications	EU/ECE R89, UTAC, TÜV, VCA
Mounting	Inline with existing throttle cable
Typical Installation Time	60-90 minutes
Warranty	2 years manufacturer's warranty
Designed & Manufactured	Chorley, Lancashire, UK

Compatible Vehicles

Developing market fleets where electronic infrastructure and diagnostic support are limited
Construction and plant vehicles operating in harsh, dusty, or wet environments where electronics are vulnerable
Older commercial vehicles with cable-throttle systems that predate CAN bus technology
Agricultural vehicles required to comply with speed limits on public roads
Budget-conscious fleet operators who need reliable speed compliance without the cost of electronic systems
Mixed fleets where some vehicles have cable throttles and others have electronic - the System 80 covers the mechanical side while the DBW covers the electronic side

GeoKontrol 2

IoT GPS geofenced speed control. Vehicles automatically adjust speed in 20mph zones, construction sites, or custom geofenced areas - no driver input needed.

Download the full datasheet (PDF)

Urban 20mph Zones

Local authorities across the UK are implementing 20mph speed limits in residential areas. GeoKontrol 2 ensures fleet vehicles automatically comply with these variable speed zones - even when the driver is unfamiliar with the area or distracted.

Construction Sites

Construction sites have strict speed limits (typically 5-15 mph) that change as the site develops. GeoKontrol 2 allows site managers to define and update speed zones in real time as the site layout evolves, without waiting for physical speed bumps or signage.

School Zones

Speed compliance near schools is critical. GeoKontrol 2 can enforce reduced speeds during school hours and relax the limit outside those hours - automatically, based on the schedule programmed in the zone database.

Depots, Warehouses, and Yards

Vehicle speed in depot areas is a common source of accidents and near-misses. GeoKontrol 2 can enforce 5 mph limits within the depot boundary, then allow normal road speeds once the vehicle exits the gate.

Residential Delivery Routes

Last-mile delivery fleets operating in residential areas can use GeoKontrol 2 to automatically reduce vehicle speeds when entering residential zones, improving safety and reducing noise complaints.

Technical Specifications

Product Name	GeoKontrol 2 GPS Geofenced Speed Control, by Autokontrol
Operating Principle	GPS geofence-based variable speed control
GPS Receiver	Multi-constellation GNSS (GPS, GLONASS, Galileo)
Position Accuracy	± 2.5 metres (CEP50)
Connectivity	4G LTE cellular (SIM included)
Zone Updates	Over-the-air, real-time
Maximum Zones	Unlimited
Speed Setting Range	5-120 km/h per zone
Power Supply	Vehicle 12V / 24V DC
Operating Temperature	-30°C to +70°C
Tamper Protection	Tamper-evident seal + remote tamper alert
Certifications	EU/ECE R89, CE marked
Typical Installation Time	90-120 minutes
Warranty	2 years manufacturer's warranty
Designed & Manufactured	Chorley, Lancashire, UK

Why Scorpion?

Trusted vehicle electronics, engineered in the UK

Resilient

45+ years of experience in the design and manufacture of vehicle electronic devices, specialising in security, GPS tracking and telematics.

Recognised

A trusted supplier to more than 22 major brands. Designing and manufacturing vehicle security and telematics systems to IATF16949 standards.

Support & Training

From the on-boarding process to exceptional technical support and training, we are here to help, backed by a worldwide network of mobile Scorpion Authorised Dealers and Engineers.

Reliable

Our Secure Control Centre helps get vehicles recovered fast, some within just 15 minutes of a confirmed theft.

Products

Products available as OE line fit, Port of Entry fit and/or as Genuine Parts via Dealer Aftermarket programs.

Global Compliance

All electronic components are International Material Data System (IMDS) compliant with global vehicle manufacturer requirements.

Client Success Stories

Trusted by leading manufacturers

We work with a range of clients globally and are trusted by many manufacturers in the automotive and motorcycle industry.

"Scorpion have always provided Toyota (GB) PLC with an outstanding service in terms of product development, good supply and reliability of the product itself and are responsive to our queries and requests at all times."

Alan Barrett Manager, Product - Toyota (GB) PLC

Jos Smetsers Executive Director PACCAR Purchasing, Europe - DAF Trucks N.V.

Take control of vehicle speed

Talk to our team about fitting Autokontrol speed limiter technology to your vehicles, equipment or plant.

Get a Quote Book a Consultation