When you need a data acquisition recorder, the first and most important choice is what you want to capture. Are you logging temperatures from multiple thermocouples, supervising an industrial process with alarms and network access, or tracking GPS speed and telemetry? The four recorders below are listed between $129.99 and $416.04, and each one takes a different approach.
Quick take
The Pico Technology USB TC-08 kit is an open-box 8-channel thermocouple logger with a USB cable, software, and calibration certificate. The OMEGA USB TC08 is a used 8-channel temperature logger that needs probes and a cable. The Eurotherm Nanodac is a used process controller with Ethernet, USB host, and a color display. The Racebox Micro is a new GPS speed meter and telemetry logger with 25Hz GNSS and Bluetooth.
Listed price comparison
Here is how the listed prices compare:
| Product | Listed price | Price bar | Primary strength |
|---|---|---|---|
| Pico Technology USB TC-08 Thermocouple Data Logger (PP222) | USD 325.00 | Complete open-box logger kit with software and calibration certificate | |
| OMEGA USB TC08 8-Channel Temperature Data Logger | USD 249.95 | Used 8-channel logger with probes and cable not included | |
| Eurotherm Nanodac Invensys Recorder | USD 416.04 | Process controller with Ethernet, USB host, and analog inputs | |
| Racebox Micro GPS Speed Meter & Telemetry Data Logger | USD 129.99 | New GPS logger for speed and telemetry |
Decision matrix
| If your primary need is... | Choose |
|---|---|
| A complete temperature/voltage logging kit with software and cable | Pico Technology USB TC-08 (PP222) |
| 8-channel temperature logging when you already own probes and a USB cable | OMEGA USB TC08 |
| Industrial process control with data logging over Ethernet | Eurotherm Nanodac |
| GPS speed, lap timing, or telemetry logging | Racebox Micro |
Product notes
Pico Technology USB TC-08 Thermocouple Data Logger (Model PP222) - New/Open Box
This open-box kit bundles the Pico Technology TC-08 with a USB cable, software disc, installation guide, and factory calibration certificate envelope. It measures temperature and low voltage (up to ±70 mV), and connects over USB, so it is ready to work with PicoLog software. The trade-off is that the box and internal packaging have been opened for inspection, even though the unit and accessories are clean. If you want a single package that includes the essentials for thermocouple logging, this is the most complete option in this comparison.
OMEGA USB TC08 8-Channel Temperature Data Logger
This used OMEGA USB TC08 is an 8-channel temperature data logger that sends data to a PC over USB. It comes without temperature probes and a USB cable, so you will need to supply those. Key functions were tested to record using K-Type thermocouple probes, but measurement accuracy was not verified. The used condition includes scratches on the plastic body, while all ports and jacks are in great shape. For someone who already owns thermocouples and a USB cable, this is a direct path to 8-channel temperature logging without extra accessories.
Eurotherm Nanodac Invensys Recorder Process Controller Data Logger Ethernet USB
This Eurotherm Nanodac is a used paperless recorder and process controller manufactured in the United Kingdom. It includes a color display, USB host port, Ethernet communication, universal analog inputs, relay outputs, and data logging. Because it was removed from a working system, it shows normal cosmetic wear including light scratches on the bezel; you receive the exact item shown in the photos. This is the recorder to choose when your data logging needs are tied to process control rather than a simple bench setup.
Racebox Micro GPS Speed Meter & Telemetry Data Logger [BOX001
Racebox Micro is a new GPS speed meter and telemetry data logger designed for DIY enthusiasts and developers. It uses a 25Hz GNSS receiver with a measurement precision of ten centimeters, supports the RaceBox Protocol and NMEA over Bluetooth, and includes built-in storage and API documentation. The trade-off is that it is focused on GPS speed and telemetry, so it won't read thermocouples or analog voltages the way the other recorders do. For lap timing, drag timing, or vehicle telemetry projects, this is the logger here built specifically for that use.
Final recommendation
Start with the Pico Technology TC-08 if you want a complete temperature/voltage logging kit and are comfortable with opened packaging. If you already have probes and a USB cable, the OMEGA USB TC08 is the 8-channel logger to buy. For industrial process control with Ethernet and a USB host, the Eurotherm Nanodac is the recorder to consider, even in used condition. If your data acquisition is about GPS speed, lap timing, or telemetry, the new Racebox Micro is the one to choose.
