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DI-4000 Data Acquisition and Data Logger Products

Product Features

  • Provided with WinDaq/Lite Software which records up to four channels at any sampling rate (purchase WinDaq/Unlock to record all channels, or to synchronize multiple units)
  • Up to 160 kHz analog sample throughput rate
  • 16-bit analog-to-digital resolution
  • Record to PC or removable USB thumb drive (requires Unlock Code)
  • Eight armored analog differential inputs
  • Adaptable low-pass filter per channel
  • Seven programmable digital ports
  • Supports ChannelStretch™ multi-unit synchronization
  • .Net Class with Example program
  • CE Approved

Products in the Series


The DI-4000 series instruments are follow up products to model DI-2108. The three are functionally identical except that DI-4000 series instruments offer programmable gain per analog channel and support ChannelStretch™ channel expansion. Suitable for a wide range of analog and discrete measurements, DI-4000 series instruments, in tandem with the included WinDaq software, allows real time data acquisition, playback, and analysis performance that covers an incredibly broad array of applications in both laboratory and industrial settings. With all eleven scan list items enabled (8 analog channels, one each counter and rate, and all discrete input ports in the remaining position) a total sample throughput rate of 220 kHz is supported.

Wide Signal Measurement Range

Suitable for use with many different signal sources, the 8 armored analog differential inputs are individually configurable from ±200 mV to ±100 V full scale. This allows you to simultaneously measure a wide range of signals with ease. Programmable measurement ranges per channel are as follows:

DI-4108 DI-4208 DI-4730
±10 V ±100 V ±1000 V
±5 V ±50 V ±100 V
±2 V ±20 V ±10 V
±1 V ±10 V ±1 V
±500 mV ±5 V ±100 mV
±200 mV ±2 V ±10 mV


Support for ChannelStretch™ multi-unit synchronization

Need more channels? Add more instruments in any combination of DI-4000 models. Add up to fifteen more instruments for a total of 128 analog channels and 112 digital ports to a maximum throughput rate ≥ 480 kHz using ChannelStretch™ technology (see the Specifications section on individual product datasheets for configuration details). Multiple instruments connected to the same USB or Ethernet hub automatically synchronize to within 10 μS between units. If you need more ports to accommodate more units, simply cascade multiple hubs to expand port count. Best of all, when using WinDaq software the enabled channels of all synced units flow into the same WinDaq application. They’re displayed and stored together as though they all originated from a single instrument. The WinDaq/Unlock option per instrument is required to synchronize when using WinDaq software.

Product Comparison

Expansion with
other models (DI-)
Max Sample
Rate (Hz)
4108 4 or 8 A 4108, 4208, 4718B, 4730 160,000 Yes 12-16 7 Bi Yes Yes Yes USB and Ethernet
PoE optional
4208 4 or 8 B 4208, 4108, 4718B, 4730 160,000 Yes 12-16 7 Bi Yes Yes Yes USB and Ethernet
PoE optional
4718B 4 or 8 C 4208, 4108, 4718B, 4730 160,000 Yes 12-16 7 Bi Yes Yes Yes USB and Ethernet
PoE optional
4730 8 D 4208, 4108, 4718B, 4730 160,000 Yes 12-16 7 In Yes Yes Yes USB, Ethernet, and PoE

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

Use the following chart to determine Measurement Ranges:

±200 mV
±500 mV
±1 V
±2 V
±5 V
±10 V
±2 V
±5 V
±10 V
±20 V
±50 V
±100 V
8-B module dependant ±1000 V
±100 V
±10 V
±1 V
±100 mV
±10 mV