Thermocouple USB Data Logger

Product Code: HDT-350

Measure and store up to 32,510 temperature readings from either a K, J or T type thermocouple (attached at the base of the unit).

The HDT-350 data logger is supplied with a basic Type K thermocouple for 0°C to +200°C (+32°F to +392°F) measurement and a long-life replaceable lithium battery which can typically allow logging for 6 months (depending on logging rate, ambient temperature and use of alarm LEDs). Status is indicated by flashing red and green LEDs.

Easily configure the data logger by plugging it into a PC's USB port and running the free EasyLog USB software, available for download using the link below. Configuration options include: logger name, measurement unit (°C or °F), logging rate, high/low alarm levels, start date/time and logging mode. Logged data can be downloaded via the software and then graphed, printed or exported to other applications.

Supplied Thermocouple Specification: Thermocouple Type K, 100mm x 3.0mm Ø stainless steel probe, 1350mm fibreglass insulated cable with miniature thermocouple plug attached.

Lascar Product Code: EL-USB-TC

  • Features
  • Technical
  • Documents
  • Software
    • Accepts K, J, T thermocouple inputs
    • Supplied with basic Type K thermocouple (0°C to +200°C / +32°F to +392°F)
    • Easy setup using free EasyLog USB PC software
    • Programmable alarm thresholds
    • Status indication via red and green LEDs
    • Replaceable battery supplied
    • Link to free configuration software supplied
    • Detachable wall clip cap
  • Technical Details
    Probe Measurement Range Type K -200°C to +1350°C (-328°F to +2462°F)
    Type J -200°C to +1190°C (-328°F to +2174°F)
    Type T -200°C to +390°C (-328°F to +734°F)
    Internal Resolution 0.5°C (+1°F)
    Accuracy (overall error) ±1°C (±2°F) data logger only - thermocouple error not included
    Unit of Measurement  °C, °F 
    Logging Rate User selectable between 1 second and 12 hours
    Operating Temperature Range -10°C to +40°C (+14°F to +104°F)
    Readings Up to 32,510
    Battery 3.6V ½ AA lithium battery (replaceable)
    Dimensions 118mm x 27mm x 27mm


  • Free EasyLog USB software

    Free EasyLog USB software

    The core of Lascar's USB data logging solution is the free software supplied with each USB data logger. Using a wizard format to guide the user through setup of the data logger and subsequent download of collected data, the software puts the 'easy' into EasyLog.

    Compatible with 32-bit and 64-bit versions of Microsoft Windows 7, 8 and 10

Note: supplied product colour may vary from image shown