Quick Verdict
If your priority is research-grade biological or patch-clamp signal capture, the Axon Instruments DigiData 1322A delivers 16-bit resolution and 16 analog input channels in a rack-mount digitizer. If you need an industrial data logger that comes with a mount and can sit at a monitoring point, the ThermoFisher DataTaker DT82I Series 3 is the more straightforward pick. Both are used units at $249.99, so the decision is about signal types and workspace rather than price.
Comparison Table
| Aspect | Axon DigiData 1322A | ThermoFisher DataTaker DT82I Series 3 |
|---|---|---|
| Price | $249.99 | $249.99 |
| Condition | Used | Used |
| Stated role | Data acquisition system and digitizer for scientific research | Industrial data logger with mount |
| Resolution | 16-bit | - |
| Analog inputs | 16 | - |
| Interface | SCSI | - |
| Mounting | Rack-mount | Mount included |
Where Each Wins
The Axon DigiData 1322A wins when you need a full lab digitizer with a large channel set, multiple digital I/O lines, and high resolution. It's aimed at scientific research and electrophysiology, including patch-clamp setups, so it fits a bench or rack where you're connecting electrodes and amplifiers.
The ThermoFisher DataTaker DT82I Series 3 wins when you want a dedicated industrial data logger that already includes a mount. You can put it into service for process monitoring, environmental logging, or equipment tracking without building a computer-based acquisition chain. Its role is more field-oriented, while the Axon is a lab instrument.
Product Notes
Axon Instruments DigiData 1322A 16-Bit Data Acquisition System SCSI USA
The Axon DigiData 1322A is a used 16-bit data acquisition system built for scientific research. It offers a generous amount of I/O for a used unit, including two analog output channels and 16 each of digital input and output lines, all alongside its analog input bank. The SCSI computer interface and rack-mount configuration place it firmly in lab environments, where it can sit in a rack next to amplifiers and other instruments. The unit powers on with the POWER and READY indicators lit. The trade-off is that this is not a portable or field logger; it's meant to stay connected to a computer and a rack, so if you need to capture signals out in the field, this isn't the tool.
ThermoFisher DataTaker DT82I Series 3 Industrial Data Logger w mount
The ThermoFisher DataTaker DT82I Series 3 is an industrial data logger, and the included mount is a practical bonus. You get a used unit that looks and works well, complete with what is shown in the photos. This is a self-contained logger you can mount at a monitoring point, making it a natural fit for industrial processes, remote equipment, or site logging where you don't want a full computer setup. The details available focus on its industrial role and included mount rather than channel counts or resolution, so it suits someone who already understands the DT82I family's capabilities. If you need exact channel specifications before committing, the Axon DigiData 1322A gives you that detail.
Final Choice by Use Case
Choose the Axon DigiData 1322A if you're building a lab-grade data acquisition setup for electrophysiology or multi-channel research signals. Choose the ThermoFisher DataTaker DT82I Series 3 if you need an industrial data logger with a mount ready for on-site deployment and you already have a sense of the DT82I's capabilities. Both are used units, so the right buy is the one that matches your signal type and working environment.
