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Portable Temperature Datalogger
Log six temperature channels on a handheld unit with a touch screen.
A portable temperature data logger records readings from multiple probes over time, for surveys, profiling and validation work you can't do with a fixed instrument. The Calex 6-channel handheld unit takes 4 thermocouple and 2 RTD inputs, with a touch screen, SD card logging and a Modbus interface, powered by battery, USB or the mains adapter supplied.
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Portable Temperature Datalogger Guide
What a portable temperature data logger is used for
The logger displays and logs all 6 channels together or individually, so you can compare readings from several points during the same run: an oven's top and bottom, or a cold room's different shelves. It runs independently of mains power, on its built-in battery, from USB or from the supplied mains adapter, so it can travel with the survey rather than staying tied to a socket.
How to use it for surveys and validation
- Mixed inputs: 4 thermocouple inputs plus 2 RTD inputs cover most survey work without swapping probe types mid-job.
- On-site reading: the backlit touch screen with a built-in stand lets you check readings without a laptop.
- Data retrieval: logs to an SD card for offline analysis, or connect it to a PC over USB.
- System integration: a Modbus interface lets third-party software pull live readings during a validation run.
- Typical jobs: oven, furnace and dryer temperature surveys, cold room and warehouse validation, and commissioning or troubleshooting heating and cooling systems.
Need a permanent, wired transmitter instead of a portable logger? See temperature transmitters. To check the logger itself against a known reference, see the thermocouple calibrator.
FAQ
Common questions
How many channels does the portable temperature data logger record?
It records 6 channels at once: 4 thermocouple inputs and 2 RTD inputs, displayed and logged together or individually. That mix suits surveys where you're comparing several points on the same run, such as different shelves in a cold room or several zones in an oven, without swapping probe types.
Can the data logger run without mains power?
Yes, it runs on its built-in battery, or from USB or the supplied mains adapter. That makes it practical for surveys away from a socket, such as inside a cold room or on a production floor, and you can still connect it to USB or mains when a longer run needs continuous power.
How do I get the logged data off the unit?
Two ways: log to an SD card and read it back on a PC afterwards, or connect the logger to a PC over USB for live or downloaded data. A Modbus interface is also available, so third-party software can pull readings directly during a validation run instead of waiting until it's finished.
What is this portable logger typically used for?
Common jobs include oven, furnace and dryer temperature surveys, cold room and warehouse validation, and commissioning or troubleshooting heating and cooling systems. The 6-channel, mixed thermocouple and RTD input makes it suited to comparing several measurement points during one run.
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