Thermocouple USB Data Logger with LCD
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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). Supplied with battery, basic Type K thermocouple and link to free PC software for configuration/analysis.

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 high contrast LCD with 4-digit temperature display can show several different temperature variables at the touch of a button: last temperature, maximum logged temperature and minimum logged temperature.
The HDT-400 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, immediate, delayed and push-to-start logging, display parameters, data rollover options and start date/time. 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 diameter stainless steel probe, 1350mm fibreglass insulated cable with miniature thermocouple plug attached.
Lascar Product Code: EL-USB-TC-LCD
Features
- Accepts K, J, T thermocouple inputs
- Supplied with basic Type K thermocouple (0°C to +200°C / +32°F to +392°F)
- High contrast, 4-digit LCD
- Easy setup using free EasyLog USB PC software
- Programmable alarm thresholds
- Status indication via red and green LEDs
- Immediate, delayed and push-to-start logging
- Replaceable battery supplied
- Link to free configuration software supplied
- Separate wall clip
Product Extra Information | Specification
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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 Windows 10 and 11