HOME / NI PRODUCTS / DATA ACQUISITION (DAQ)
What is DAQ?
Data acquisition (DAQ) is the process of measuring an electrical or physical phenomenon, such as voltage, current, temperature, pressure, or sound. A DAQ system consists of sensors, DAQ measurement hardware, and a computer with programmable software. 
Multifunction I/O
Voltage
Current
Digital I/O
Counters and Timers
Packaged Controllers
Board-Level Controllers
HMIs and Displays
Safety
Signal Conditioning
Temperature
Sound and Vibration
Strain, Pressure, and Force
Position Displacement
Machine Vision
Industrial Communication Buses
Turning Real-World Data
into Insights
Every data acquisition task has its own set of requirements. To help meet your unique needs, NI products range from plug-and-play DAQ devices for fixed and repeatable measurements, to scalable and flexible modular DAQ systems. Our versatile driver is extended by NI data acquisition-specific software and supports third-party programming languages.
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Accurate
NI led the creation of the PXI standards body to create an open standard, so you can augment your NI system with specialty modules from up to 60 other vendors.
Flexible
NI PXI hardware utilizes the latest technology, incorporating powerful multicore processors, FPGAs, and other technology to increase measurement range and performance.
Scalable
Programmable
PXI’s architecture makes it possible to synchronize measurements across multiple modules or multiple chassis, so you can add to your systems as requirements change.
PXI offers some of the highest frequency and accuracy specifications, so you can ensure your test systems deliver the production test results you need.
DAQ System Options
NI offers PC-based systems with plug-and-play DAQ devices with fixed functionality or configurable systems that let you mix and match hardware.
PC-Based Systems
Achieve electrical and physical measurements with a customizable, accurate, yet cost-effective way to conduct benchtop measurements.
CompactDAQ
This portable, flexible approach is ideal for applications with a wide mix of measurement types, where scalability and flexibility are important. Hardware ruggedness makes it a great fit for high-channel-count distributed applications in the field.
CompactRIO
Take advantage of real-time data processing capabilities, sensor-specific conditioned I/O, and a closely integrated software toolchain for long-running, industrial data acquisition applications.
PXI
Use this modular approach for high-channel-count data acquisition and sensor measurement applications. Systems range from tens to hundreds of channels, mixing and matching measurement functionality and output capabilities.
Find the Right DAQ Hardware
NI’s DAQ devices are divided into categories to help you easily find options that meet your needs. Select by measurement type, such as temperature or strain, or common form factors, including USB.
Measurement Types
Accessories
Voltage
Current
Temperature
Sound and Vibration
Strain, Pressure, and Force
Power Accessories
Connectors
Cables
Sensors
Products to ENGINEER THE FUTURE
Software
Control Your DAQ System
NI’s DAQ devices include the NI-DAQmx driver, utilities, and getting-started examples. It integrates with development environments such as LabVIEW, or application software such as FlexLogger™ software, to create an application without coding.
DAQExpress™
FlexLogger™ Software
LabVIEW
Selecting DAQ Hardware
Identifying the right DAQ system or device for your project requires considering many factors. Here are some helpful resources to guide you toward an approach that delivers the data you need to make business decisions.
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