Compare NI’s Entry-Level, Stand-Alone Data Acquisition Devices
| NI USB-6421 | NI USB-6003 | NI USB-6002 | NI USB-6001 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| View Specifications | View Specifications | View Specifications | View Specifications | |||||||||
| I/O Type | AI | AO | DIO | AI | AO | DIO | AI | AO | DIO | AI | AO | DIO |
| No. of Channels | 8/16 | 2 | 16 | 4/8 | 2 | 13 | 4/8 | 2 | 13 | 4/8 | 2 | 13 |
| Sample Rate (kS/s and Timed) | 250 | 250 | 10 MHz | 100 | 5 | SW | 50 | 5 | SW | 20 | 5 | SW |
| Resolution | 16 bits | 16 bits | 16 bits | - | 16 bits | - | 14 bits | - | ||||
| Software | Includes NI FlexLogger Lite™—free data-logging software Driver support for developing applications in ANSI C, Python, Visual C# .NET, Visual Basic .NET, and NI LabVIEW | |||||||||||
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Shop All NI Multifunction I/O Devices
Multifunction I/O devices provide combinations of analog I/O, digital I/O, and counter/timer functionality in a single device for computer-based systems.
Learn How to Scale Using CompactDAQ
CompactDAQ systems provide a customizable solution for engineers to perform electrical and physical measurements either at their benchtop or in a distributed architecture.
Key Benefits
- Take measurements with no programming—The included FlexLogger™ Lite software gets you to your first measurement faster with no programming required. Configure channels after automatic hardware detection. Drag and drop data indicators to view your data right away. Log data in a .CSV or .TDMS file.
- Choose software options that meet your needs—For advanced measurement and automation applications, the included NI-DAQ™mx driver provides full support for FlexLogger software, LabVIEW, and programming languages such as ANSI C, Python, Visual C# .NET, and Visual Basic .NET. Learn more
- Add devices for PC-based measurements—NI USB DAQ devices include software support and resources for various application development environments and programming languages. The small and lightweight form factors of USB, PCI, and PCI Express are ideal for benchtop measurements. Learn more
- Seamlessly switch between different DAQ devices—The included NI-DAQmx driver supports all NI DAQ hardware and helps you seamlessly take measurements with NI DAQ devices without having to install additional drivers. Reuse configurations and code snippets that you have already developed. Learn more
Accelerate Your DAQ Setup with Free FlexLogger Lite
Start your data acquisition with free FlexLogger Lite, included with supported NI hardware. Configure channels and log data effortlessly with no programming required. Adapt to project changes effortlessly and upgrade anytime to the full-featured FlexLogger for more complex tasks such as basic automation, triggers, and alarms.
DAQ Webinar Library
Whether you’re validating at the bench or scaling to complex test systems, our on‑demand DAQ webinars can show you how to architect accurate, reliable, and scalable measurement solutions.
What NI DAQ Hardware Is Right for You?
Cost-Optimized
All-in-one devices with ±10 volt input/output, 5 V/TTL digital input/output, and counters. Connect with USB or install in a desktop or industrial PC.
Recommended Uses
- Desktop and testbench data acquisition or logging
- Sensors with 10 V output signals
- Manufacturing test systems
- Simple scope or function generation tasks
- Quadrature encoders, PWM, and controlling relays or LEDs
Compact and Flexible
Modular DAQ systems with more than 70 modules for input/output of voltage, current, digital, and sensors. Connect to a PC with a USB or Ethernet chassis. Rugged specs and passive device cooling (no fans).
Recommended Uses
Compact vibration and acoustic measurements
Electromechanical component test systems
High-channel, synchronized distributed measurements
High-Performance DAQ
PXI input/output devices for voltage, current, and sensors connect to a computer processor installed in the chassis using a high-speed bus for the best data throughput, synchronization, and overall reduced test times.
Recommended Uses
Production test systems for electronics
Minimizing test time in automated systems
High-channel-count, high-data-throughput sensor measurement
Ultimate Ruggedness
IP65/67-rated devices for waterproof and dust-tight operation. Shock and vibration specs of 100 g/10 grms and operating temp range from -40 °C to 85 °C. Ethernet communication with synchronization over Ethernet up to 15 hops.
Recommended Uses
- V&V of physical systems: HALT testing, structural test, outdoor test
- Large, distributed test systems
- Heavy equipment/off-road vehicle testing
- Component tests in test cells, chambers
- Academic indoor/outdoor research