Engineering that Thinks Ahead

Vehicle keys

for modern vehicle access systems.

Innovative vehicle keys.

We develop and manufacture high-quality vehicle keys for a wide range of vehicle electronics applications – from classic fixed keys with immobilizer to remote keys with central locking and modern keyless entry/go systems.

Our vehicle key solutions combine robust technology with user-friendly operation – customizable with laser engraving, doming, and flexible configuration options.

Whether for series production or a customized solution: together with DLP, we deliver vehicle access systems perfectly tailored to your requirements.

Technical

specifications.

Transponder
Automotive transponder: NXP HT Pro or TagCoder (both AES encrypted)
Function
Passive immobilizer (transponder in the key head, no wireless function)
Communication
Inductive coupling in the 125 kHz range
Power supply
No internal power source (passive)
Security features
Crypto transponder with AES encryption
Housing
Robust plastic housing, optionally with metal reinforcements
Typical applications
Vehicle unlocking via mechanical lock, engine start via ignition with reader coil
Transponder
Automotive transponder: NXP HT Pro or TagCoder (both AES encrypted)
Frequency range
868 MHz (Europe) / 916 MHz (Asia/USA)
Communication
Unidirectional wireless communication (manual activation via button press)
Power supply
Coin cell batteries (CR2032/CR2450 or comparable), optionally a rechargeable battery via USB-C
Security features
AES encryption with signature
Functions
Locking/unlocking doors, optional trunk button, panic function
Housing
Flip key or fixed housing with push button
Key Features
PCB-integrated microswitches, optional LED status indicator
Transponder & microcontroller (MCU)
Integrated microcontrollers with UHF and LF technology
Frequency ranges
• UHF: 868/916 MHz for communication with the vehicle
• LF: 125 kHz for short-range detection (e.g. door handle)
Communication
Bidirectional communication with authentication protocol
Power supply
Coin cell (e.g. CR2032/2450),
optimized power management (sleep/wake),
optional rechargeable battery via USB-C
Security features
• AES encryption with signature
• Passive Keyless Entry (PKE) / Remote Keyless Entry (RKE) / Keyless Go
Key Features
• Driver recognition systems possible
• Engine start authorization via start/stop button
• Optional: motion sensor for deactivation (anti-theft protection)

Key features of

our vehicle keys.

Automotive-grade security
All keys meet the highest security standards and are designed for modern vehicle access systems.

Fully customizable
Domings, laser engravings, color accents, and freely programmable buttons enable maximum design and functional flexibility.

Unique locking code per key
Each key is assigned its own unique locking code – ensuring maximum security and traceability.

Proven in series production and built to last
Our vehicle keys are used millions of times worldwide – robust, reliable, and tested under extreme conditions.

Certified quality & global approvals
CE and FCC compliant – upon request, we support international certification processes and provide all required test reports and documentation.

Customizable button configuration
Functions such as lock, unlock, lighting, or keyless entry can be freely configured according to customer requirements.

Applications

and industries.

Our vehicle keys are used across a wide range of vehicle types – from agricultural and construction machinery to motorhomes, as well as last-mile and specialty vehicles. The systems can be individually configured and control a variety of functions – precisely, robustly, and reliably.

Agricultural and construction machinery

Vehicle access systems for harsh operating conditions:


✔ Immobilizer
✔ Central locking
✔ Coming/Leaving Home function (including lighting)
✔ Automatic closing of doors and compartments
✔ Electronic soft-close assistance

Passenger cars & automotive applications

Customizable vehicle keys for comfort and security features:

✔ Door and trunk control
✔ Activation of climate control or lighting functions
✔ Coming/Leaving Home automation

Last-mile & logistics vehicles

Smart access systems for urban mobility and fleet management:

✔ Electronic locking of cargo boxes
✔ Activation/deactivation of vehicle-specific functions (e.g. interior lighting, partition systems)

Motorhomes & recreational vehicles

Control of additional vehicle functions independently of the central locking system:

✔ Electric step systems
✔ Side entrance doors
✔ Flaps and storage compartments controllable separately

Why TeraTron?

Innovative technologies

Intelligent vehicle access systems – flexible, modern, and future-proof

Made in Germany

Development & production in Gummersbach – all from a single source

Scalable solutions

From high-volume production to custom projects – reliable and adaptable

Direct contact

Direct communication with our engineers for fast, tailored solutions

Certified security

CE & FCC standards, support for international certifications

Proven technology

Over 100,000 robust modules in use worldwide

Reimagine your vehicle access systems.

Our experts are here to support you.

Your vehicle deserves more than standard. Start your project today – speak directly with our experts!

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