HU adapters & SP adapters - Your all-round carefree package for vehicle inspection
Reliable testing. Convenient operation. Safe investment.
The latest generation of the HU adapter is a robust and powerful testing device for technical inspection centres, monitoring organizations and approved workshops. SPEKTRA as your provider also offers a modular full-service package. This package will simplify your work, make costs more predictable in the long term and secure your operations.
A package full of benefits
If you choose the optional full-service package or rent your HU adapters from us, the following services are included:
Statutory calibration
Every 24 months - easy and straightforward in our DAkkS-accredited calibration laboratory
Maintenance & Servicing
During each regular calibration, including cleaning
Repairs including spare parts
A broken display? Damaged or faulty OBD cable? No problem, we'll take care of it!
Replacement devices in express
24h replacement service for uninterrupted operation (Mon - Fri, 8 - 16 hrs)
Shipping costs included
No shipping charges for calibration services, repairs or rental equipment
Test equipment monitoring
Never forget a statutory calibration with our automatic reminders for your test equipment
Services for automotive test equipment
As a workshop, inspection or test center, you can rely on a competent and DAkkS-accredited partner for the calibration of your test equipment for vehicle monitoring. We calibrate your measuring devices quickly and reliably, regardless and independent of the equipment's manufacturer.
- HU/SP adapters
- sound level meters
- GPS-based speed measuring devices
- delay meters

HU Adapter Gen II - More powerful and efficient
The latest generation of adapters has been improved in terms of technical performance and handling to make your daily work as effective as possible. Particular emphasis has been placed on future-proof vehicle communication and a stable performance.
Strong performance
- future-proof: 32 GB memory for large amounts of vehicle data
- 4 GB RAM for enhanced performance
- faster data transmission with lower battery consumption
- DoIP, CAN-FD, Gigabit ethernet: Diagnostic standards with high transmission speed
- very short update time for minimal downtime
- immediately ready for use thanks to thee improved standby function

Optimized handling
- optimized, user-friendly menu structure
- less charging due to more powerful battery & standby
- fast charging via USB-C interface
- convenient operation thanks to new keypad layout (incl. configurable function key)
- improved display readability thanks to higher contrast
- optimized, wider carrying handle

"Do I need a HU adapter of the second generation?"
Accessories & spare parts
Of course, you can buy accessories and spare parts for your HU and SP adapters from SPEKTRA. From cables and replacement batteries to rubber bumpers. We've got you covered!
Note:
Specified adapters (HU/SP/PSP adapters) can only be purchased from technical test centres, monitoring organizations, internal administrators and approved SP workshops that are authorised to carry out main inspections or safety tests!
A mobile device (notebook, tablet, smartphone) with the corresponding FSD software (VIS.APP) is required for operation and display.
What is the HU adapter?
The HU adapter is a universal testing and measuring device for the main inspection (HU) and safety test (SP) of vehicles. The use of an electronic vehicle interface has been part of the main inspection since 2015. The HU adapter is the central tool for experts and test engineers.
The device enables digital communication with the vehicle electronics and supports numerous test processes: from the brake efficiency test to the analysis of modern headlight systems or high-voltage batteries. The HU adapter is supplemented by the SP adapter for specific safety tests.
To ensure that these test devices function properly, all HU and SP adapters must be checked and calibrated at regular intervals.
FAQ - Your questions, our answers
Technical questions about the HU adapter Gen II
The HU adapter is a robust, handy and universally applicable testing and measuring device for the main inspection. When used with the VIS.App software application, it enables communication with the vehicle electronics via the electronic vehicle interface as well as the measurement of dynamic driving parameters.
The HU adapter optimizes a number of tests (e.g. the brake efficiency test). It enables for instance the testing of modern headlight systems with adaptive light functions and even of electric or hybrid vehicle bateries.
The SP adapter is also available for safety testing as a robust, handy and universally applicable testing and measuring device.
The HU adapter may only be purchased by technical test centres, monitoring organizations, internal administrators and approved SP workshops that are authorized to carry out main inspections or safety inspections! SPEKTRA is therefore obliged to obtain the relevant authorization from FSD GmbH before selling an HU adapter.
Compared to the SP adapter 2014 and the HU adapter Weimar2, the second generation features improvements to both the technical components and the handling. These include:
- future-proof: 32 GB memory for large amounts of vehicle data
- 4 GB RAM for enhanced performance
- faster data transmission with lower battery consumption
- DoIP, CAN-F and Gigabit ethernet: Diagnostic standards with high transmission speed
- very short update time for minimal downtime
- immediately ready for use thanks to the improved standby function
- optimized, user-friendly menu structure
- less charging thanks to more powerful battery & standby
- fast charging via USB-C interface
- more convenient operation thanks to new keypad layout (incl. configurable function key)
- improved display readability thanks to higher contrast
- optimized, wider carrying handle
Yes, a quick-start guide is included with every HU adapter supplied to help you get started. The guide also contains a link to the latest user manual.
The VIS.App software is required to use the HU adapter Gen II. It supports experts during the main inspection with digital vehicle and test information and enables the use of test procedures via the electronic vehicle interface. The VIS.App is optimized for notebooks, tablets and smartphones.
No, the HU adapter does not require an external power supply. The device is powered by a battery, which is rechargeable via a USB-C, e.g. on a laptop or using an optional plug-in power supply. Alternatively, the adapter can be charged via the OBD cable when connected to the vehicle.
Yes, the device can be updated. Just as the vehicle data is constantly changing, the requirements for the HU adapter may also change and therefore require an update.
Service & support
Even if the HU adapter was developed for everyday workshop use, components may break or wear out over time. During regular calibration, we therefore check the general condition and offer you a spare parts service.
The HU adapter is an essential daily tool for many test engineers and must therefore always be available. To this end, SPEKTRA offers an all-inclusive service package (SA HUA GenII). This ensures an uninterrupted workflow at test centres or, at worst, a minimum interruption. This is guaranteed by providing appropriate hardware, such as loaner devices and spare parts, as well as services such as calibration reminders and express deliveries. The aim is to provide customers with a comprehensive, carefree package offering predictability and cost optimization.
Yes, every 24 months by an accredited calibration laboratory in accordance with traffic bulletin publication (24/2020). SPEKTRA has been operating a laboratory specializing in HU adapters since 2017. Over 4,500 HU/SP adapters (manufacturer-independent) of generation I and II are calibrated and serviced here every year.
Contact us - we will be happy to advise you!
Please use the support contact of your testing organization as a priority.
Alternatively, you can reach SPEKTRA by phone at +49 351 400240 or by email at: HUA@spektra-dresden.de
The standard warranty for the HU adapter Gen II at SPEKTRA is 12 months after initial delivery.
Scope of delivery and ordering
In addition to the actual device, an OBD cable with lighting, a USB-C cable and quick-start instructions are included as standard on delivery. The adapter and its accessories are shipped in individual cardboard packaging.
A USB-C charging plug is not included in the standard scope of delivery and can be ordered separately.
We try to keep the delivery times for your new HU adapter Gen II as short as possible and therefore aim for approx. 3-4 weeks.
If you are interested in buying, please use this contact form directly or send us your request by email to: Sales@spektra-dresden.com
We will provide you with a non-binding, individual offer to suit your needs.
Would you prefer personal advice? Our sales team will be happy to advise you by phone on +49 351 400240.
Of course, it is possible to agree on graduated prices or framework contract conditions for your company/organization. Please contact our sales team for this.
Contact form| Tel.: +49 351 400240 | E-Mail: sales@spektra-dresden.com
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