8-Channel USB Data Acquisition (DAQ) System
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USB Data Acquisition (DAQ) Systems
USB DAQ systems from Dewesoft help you capture, store, and analyze test data quickly and accurately. Whether you need to measure voltage, current, vibration, temperature, strain, sound, CAN bus, or other sensor signals, our portable USB DAQ systems make it easy to connect sensors, acquire data, and visualize results from a laptop or PC. From small channel count configurations to high channel count systems, Dewesoft solutions scale easily with simple daisy chaining and modular expansion. Combined with advanced signal conditioning and intuitive software, they provide a complete USB data acquisition solution for demanding test and measurement applications.
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Compare Dewesoft USB DAQ Systems
| System | Channels | Max rate per channel (USB) | Resolution | Signal types | Power | Best for |
|---|---|---|---|---|---|---|
| SIRIUS Mini | 4 | 200 kS/s | DualCoreADC 24-bit, 160 dB dynamic range | Voltage, IEPE/ICP | USB bus-powered | Portable sound and vibration work with no power brick |
| DEWE-43A | 8 universal + 8 counter/encoder + 2 CAN bus ports | 200 kS/s | 24-bit | Voltage and full bridge direct; IEPE/ICP, charge, strain, RTD, thermocouple, current, LVDT via DSI adapters | 9–36 V DC, approx. 6 W | Mixed-signal field testing with CAN bus — 2 isolated CAN 2.0b ports |
| SIRIUS Modular | 8 per slice (16 with HD amplifiers) | 200 kS/s and 1 MS/s on HS amplifiers | DualCoreADC 24-bit; 16-bit SAR on HS amplifiers | Full amplifier range: Voltage, High Voltage, IEPE/ICP, Charge, Strain, Universal, and Current, LVDT, Thermocouple, RTD via DSI adapters. | 9–36 V DC, 15–35 W | Setups that grow — slices daisy-chain, ±1000 V channel isolation |
| SIRIUS X | 16 | Up to 200 kS/s | 24-bit | Voltage, IEPE/ICP, Strain, Universal, and Current, Charge, LVDT, Thermocouple, RTD via DSI adapters | 9–57 V DC, 15–50 W | Setups that grow — slices daisy-chain |
| SIRIUS Waterproof | 8 or 16 | 200 kS/s | DualCoreADC 24-bit | Voltage, IEPE/ICP, Strain and Current, Charge, LVDT, Thermocouple, RTD via DSI adapters | 9–36 V DC, 15–35 W | Field testing, IP67, −40 °C to +60 °C —outdoors, on-track, in the rain |
| SIRIUS R2/R4 (HUB models) | 32 / 64 | 200 kS/s; 1 MS/s on HS amplifiers | DualCoreADC 24-bit; 16-bit SAR on HS amplifiers | Voltage, IEPE/ICP, Strain, Universal, and Current, Charge, LVDT, Thermocouple, RTD via DSI adapters | 9–36 V DC, 15–35 W | High channel counts in a rack, streaming to an external PC |
| SIRIUS XHS | Up to 8 per chassis | 15 MS/s (5 MHz bandwidth) | 16-bit high-bandwidth, or 24-bit alias-free | Voltage, High voltage, IEPE/ICP, Strain, Charge, and Current, Charge, LVDT, Thermocouple, RTD via DSI adapters, plus CAN FD, XCP/CCP, OPC UA | 9 - 48 V DC, Typ. 30 W | Transients, power electronics and anything needing MHz bandwidth — USB 3.0 Type-C, openDAQ compatible |
Which USB DAQ device is right for your application?
Six systems, one software environment — the choice comes down to how many channels you need, how fast you need to sample them and where the test happens.
You need portable sound and vibration measurements with minimum kit. SIRIUS Mini. Four channels of voltage or IEPE, entirely USB bus-powered — the USB connection supplies sensor excitation too, so there is no adapter to forget. 160 dB dynamic range in a 0.75 kg box.
You are measuring mixed signals in the field, including vehicle bus data. DEWE-43A. Eight universal analog inputs, eight counter/encoder inputs and two isolated CAN 2.0b ports in a unit weighing under a kilogram. It runs on 9–36 V DC at around 6 W, so a vehicle's 12 V supply powers it all day.
Your channel count will grow. SIRIUS Modular or SIRIUS X. Slices daisy-chain for power and synchronisation, so the system expands without replacing what you own. ±1000 V channel-to-channel isolation, and the full amplifier range covers every sensor type Dewesoft supports.
You are capturing transients, power electronics or anything above 100 kHz. SIRIUS XHS. Up to 15 MS/s per channel with 5 MHz bandwidth over USB 3.0 Type-C, or 24-bit alias-free mode when dynamic range matters more than speed. Also the system to choose if you are building your own software — it ships openDAQ compatible.
The test happens outdoors, on track, or anywhere wet and cold. SIRIUS Waterproof. IP67 sealed, rated −40 °C to +60 °C, with 8 or 16 channels. No enclosure, no weather tent.
You need 32 or more channels but still want to stream to a laptop. SIRIUS R2/R4 in HUB configuration. 32 or 64 analog channels plus counters and CAN, streaming to an external PC over USB, with HS amplifiers available at 1 MS/s per channel.
Why choose Dewesoft USB data acquisition systems
Dewesoft USB data acquisition systems are built for users who need precise measurements without the complexity of traditional test setups. They are easy to install, simple to expand, and ready for everything from basic signal logging to advanced synchronized testing. With one software environment for acquisition, visualization, storage, and analysis, your team can move faster from setup to insight.
Key benefits
Portable, compact, distributable, or high-channel count systems for lab and field use.
High accuracy measurement for demanding test applications.
Support for analog, digital, counter, CAN, GPS, EtherCAT, video, and more.
Easy connection to a laptop or PC via USB.
Powerful DewesoftX software included for acquisition and analysis.
Modular and scalable system architecture.
Fast setup for engineers, test benches, and mobile measurement teams.
What can you measure with USB DAQ systems
A Dewesoft USB data acquisition system can be configured for a wide range of measurements. Typical inputs include voltage, current, IEPE sensors, accelerometers, strain gauges, thermocouples, RTDs, digital inputs, encoder signals, CAN bus data, and other industrial or automotive interfaces. This flexibility makes USB DAQ systems suitable for both simple testing and complex synchronized measurement applications.
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Typical applications for USB DAQs
USB data acquisition systems are used across many industries and test environments. Common applications include:
Industrial troubleshooting
Because the systems are portable and easy to deploy, they are especially useful when measurements need to be performed outside a fixed lab setup.
Included for free: DewesoftX award-winning DAQ software
Dewesoft USB data acquisition systems are powered by our award-winning DewesoftX software, which enables real time data visualization, recording, post processing, and reporting in a single environment. Users can configure channels quickly, view live data, combine multiple data sources, and export results for further analysis.
DewesoftX is included with every Dewesoft DAQ system and updates are free for life. Because the same software runs the entire range, moving from a four-channel SIRIUS Mini to a 64-channel rack means no new licence and no retraining — the setup you build today still works when the channel count grows.
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High Speed USB Data Acquisition
How fast USB can acquire data depends almost entirely on which USB generation the instrument uses. USB 2.0 tops out at 480 Mbit/s, which is ample for up to 1 MS/s per channel. USB 3.0 raises the ceiling to 5 Gbit/s, and that is the headroom high speed USB data acquisition actually needs.
SIRIUS XHS connects over USB 3.0 Type-C and samples at up to 15 MS/s per channel with 5 MHz of bandwidth in high-bandwidth mode, or switches to 24-bit alias-free acquisition when dynamic range matters more than raw speed. That makes it suited to transient and short-duration events — breaker switching, pyroshock, impact, power electronics switching behaviour, lightning — where the signal exists for microseconds and there is no second attempt at capturing it.
There is a second point worth making, because it runs against the usual assumption. USB is often treated as the slower, simpler bus. In the Dewesoft range it is the opposite: DualCoreADC amplifiers sample at 200 kS/s per channel over USB, against 20 kS/s over EtherCAT. If a compact, high-rate setup is what the test needs, USB is the faster connection, not the compromise.
USB DAQ Systems: Frequently Asked Questions
A USB DAQ (data acquisition) system is a measurement instrument that connects to a laptop or PC over USB and converts sensor signals — voltage, vibration, temperature, strain, sound — into digital data you can record and analyse. Unlike a plug-in card, it sits outside the computer, so it needs no free slot and travels with the laptop.
A DAQ board or card plugs into a slot inside the computer and usually needs separate signal conditioning before sensors can be connected. A USB DAQ system is a self-contained instrument — amplifiers, anti-aliasing filters, sensor excitation and isolation are built in. Dewesoft builds systems rather than boards, so sensors connect directly.
Dewesoft USB systems start at four analog channels with SIRIUS Mini and up to 8 or 16 channels on DEWE-43A and SIRIUS models. Multiple units daisy-chain and stay synchronised to microsecond accuracy, or lock together via IRIG or GPS, so one setup scales well beyond a single unit's channel count.
Yes. SIRIUS XHS streams over USB 3.0 Type-C at up to 15 MS/s per channel in high-bandwidth mode, with 16-bit resolution and 5 MHz bandwidth, or switches to 24-bit alias-free acquisition for high dynamic range. For most testing, DEWE-43A and SIRIUS Mini sample 24-bit at 200 kS/s per channel.
It depends on the model. SIRIUS Mini is fully USB bus-powered — the USB connection carries data and supplies IEPE sensor excitation, with no adapter required. DEWE-43A or SIRIUS system with higher channel count take 9–36 V DC and draws around 6 W typically, so it runs from a vehicle's 12 V supply, a field battery or a bench supply.
Yes. DEWE-43A includes two isolated CAN 2.0b ports running at up to 1 Mbit/s. SIRIUS modular units and SIRIUS XHS adds CAN FD, XCP/CCP and OPC UA. Vehicle bus data is time-synchronised with analog, counter and GPS channels in the same file, so there is no alignment step after the test.
Choose USB for portable, single-operator tests where the instrument sits beside the laptop — it is simpler to set up, with no network configuration. Choose Ethernet or EtherCAT when channels are spread across long distances, when many units must synchronise across a site, or when the system runs without an attached PC.
Yes. SIRIUS X and SIRIUS XHS ships with openDAQ-compatible firmware, so you can discover, configure and stream from it directly in your own application using the open-source openDAQ™ SDK — in Python or C++, on Windows, Linux or macOS, with no DewesoftX in the loop. A LabVIEW driver is available in preview. Other USB systems integrate through the DewesoftX DCOM API, which has documented Python examples.
DewesoftX is included free with every Dewesoft USB system and exports to more than 25 formats, including MATLAB, MS Excel, text/CSV, UNV, ASAM ODS and MDF. It also supports OPC UA, Modbus and MQTT for live integration with SCADA, MES and ERP systems, and developers can write custom export plugins.
Still weighing it up? Talk to an application engineer — tell us what you are measuring and we will size the system, or arrange a demo with the hardware in your own lab.