Quick Verdict
If you want a data acquisition recorder with a known background and a lower listed price, the IOtech Personal Daq/56 at USD 599.99 is the easier pick. Its description says it was removed from a known-working test unit with little classroom use.
If you need a different module style and are willing to accept an unknown history, the iWorx Systems IX/228 at USD 1,725.24 powers up but has not been further tested. The final choice comes down to how much uncertainty you're comfortable with and what your budget is.
Comparison Snapshot
| Product | Listed price | Price bar | Condition | MPN |
|---|---|---|---|---|
| IOtech Personal Daq/56 | USD 599.99 | Used | DAQ/55 | |
| iWorx Systems IX/228 | USD 1,725.24 | Used | IX228, IWX228 |
The listed price gap between the two is USD 1,125.25.
Where Each Product Stands
The IOtech unit is the lower-priced option and includes four removable screw-terminal blocks plus a USB cable. That puts it ahead if you need a recorder that is ready to wire up without extra purchases.
The iWorx module is the higher-priced listing. It came from a state surplus sale, so prior usage is unknown, and no accessories are included beyond what appears in the photos. If you need an iWorx-brand module and can handle the extra uncertainty, this is the listing that offers it.
Product Notes
IOtech Personal Daq/56 USB Data Acquisition System DAQ56 22-Bit w/ Terminal Bloc
This is the listing to choose if you want a used data acquisition recorder with a defined background. The description notes it was removed from a known-working test unit and used very little in a classroom, so you get a clearer starting point than surplus gear. It also includes the four removable screw-terminal blocks and the USB cable shown in the photos, which can save you from sourcing those separately. The limitation to keep in mind is that the listed MPN is DAQ/55 while the title says DAQ56, so if part-number accuracy matters, note that difference. Normal wear is possible despite the described excellent condition.
iWorx Systems IX/228 Data Acquisition System Module Part IWX/228
Go for this module if your setup calls for an iWorx-brand device and you are willing to accept a less documented history. The unit came from a state surplus sale, so prior usage is unknown, and the description says it powers up but no further testing has been done. That is a notable limitation for mission-critical use; you will need to do your own validation. It also comes with no accessories beyond what is pictured, so budget for any cables or connectors you may need. On the positive side, it is a used iWorx module that at least confirms power-on behavior, and the listed part numbers include both IX228 and IWX228.
Final Choice by Use Case
Choose the IOtech Personal Daq/56 for a more defined starting point and included wiring accessories. It fits when you want a lower-priced recorder with a known classroom background.
Choose the iWorx Systems IX/228 if you specifically need an iWorx module and can accept an unknown history and a power-on-only check. The higher listed price reflects a different product, not an upgrade in proof of function.
