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Data Acquisition (DAQ)

Data acquisition systems from DATAQ Instruments are available for a wide range of special-and general-purpose applications, and for any interface and deployment method. Our data acquisition systems support voltage, current, thermocouple, 4-20 mA measurements and more in any combination. Choose either a USB or Ethernet interface, and stand-alone solutions that record data to their own memory, or those that acquire data to a PC using our popular WinDaq software. View all Data Acquisition Products. Read our reviews and testimonials.

Most Popular Data Acquisition (DAQ) Products

Low-Cost Starter Kits
DI-145 USB Data Acquisition Starter Kit
Measure Anything
DI-718B Data Acquisition System
Heavy Industry
DI-730 Industrial Data Acquisition
DI-245 Thermocouple Data Acquisition

Product Selection Guides

By Measurement

By Interface

By Deployment


Data Acquisition Characteristics

PC-connected Data Acquisition

Dependent upon a PC to acquire data, PC-connected instruments usually share these common traits:

  • Faster sampling speeds
  • Provided with software that delivers PC-based storage and a real time display of acquire data.
  • Sometimes powered directly from the PC, or supplied with an external power supply

Stand-alone Data Acquisition

Beyond their ability to operate independently, stand-alone data acquisition products usually share a number of common traits:

  • The ability to support removable memory devices like SD memory cards
  • Often, but not always slower sampling rates than PC-connected data acquisition products
  • Often DC-powered devices for deployment flexibility

Data Acquisition Interfaces

PC-connected Data Acquisition Interfaces

Data acquisition products that need a PC to acquire data must connect to them in some manner. This is done through standard interfaces, which are found on all PCs. The most common are:

  • USB
  • Ethernet

Stand-alone Data Acquisition Interfaces

Even though they operate without a connected PC, stand-alone data acquisition products need to be programmed to define how data is logged. Common ways to connect are the same as PC-connected products:

  • USB
  • Ethernet

Data Acquisition Memory

PC-connected Data Acquisition Memory

By definition, pc-connected data acquisition products use a PC’s memory for data storage. Software supplied or purchased with the data acquisition system determines how the PC’s memory is used:

  • Stored to PC's RAM
  • Streamed to a PC's hard disc drive
  • Virtually unlimited storage

Stand-alone Data Acquisition Memory

Memory options for stand-alone data acquisition products come in many shapes and sizes, but the most common forms are:

  • SD memory

Data Acquisition Software

All data acquisition products offer PC software solutions that can adapt to the demands of any application. These assume three forms that address the broad base of software approaches:

  • Ready-to-run data acquisition software offers a no-programming environment to acquire, display, record, analyze and export data to other applications.
  • Software that supports programming languages like VB, and Dot Net under a Windows operating system environment.
  • Protocol-level support that allows root access to a given device's command set from any programming language or operating system.

Popular Products at a Glance

Model (DI-) Analog channels Expandable* Measurement range Thermocouple support Expansion with other models (DI-) Max sample rate (kHz) Low-pass filter ADC resolution Digital I/O Counter channel Rate channel Price
1100 4 - ±10 V - - 40 - 12 2 In - - $59
1110 8 - ±10 V - - 160 - 12 7 Bi Yes Yes $89
1120 4 Yes A† - 4108, 4208 160 - 14 7 Bi Yes Yes $178
2108 8 - ±10 V - - 160 - 14 7 Bi Yes Yes $259
245 4 - B† Yes - 2 - 14 2 In - - $299
2108-P 8 Yes C† - 2108-P 160 - 16 7 bi Yes Yes $349
2008 8 Yes B† Yes 2008 2 - 16 7 bi Yes Yes $499
4108 8 Yes D† - 4208, 1120 160 Yes 12-16 7 bi Yes Yes $299
4208 8 Yes A† - 4108, 1120 160 Yes 12-16 7 bi Yes Yes $299

*Expand with ChannelStretch™. Compatibility with other units dependent on model.

† Use the following chart to determine Measurement Ranges:

±2 V
±5 V
±10 V
±20 V
±50 V
±100 V
±10 mV
±25 mV
±50 mV
±100 mV
±250 mV
±500 mV
±1 V
±2.5 V
±5 V
±10 V
±25 V
±50 V
±2.5 V
±5 V
±10 V
0-5 V
0-10 V
±200 mV
±500 mV
±1 V
±2 V
±5 V
±10 V