• -40 to 212°F (-40 to 100°C) temperature range
  • +/-0.5°C accuracy
  • Bluetooth Low Energy communication
  • Approx. 100ft (30.5m) line-of-sight transmission range
  • Approximately 60sec full-memory download time
  • No PC or cable needed for setup or download
  • 2 AAA-battery power
  • 128 KB memory (84,650 measurements)
  • NIST certificate of calibration
  • IP54 and CE ratings


The InTemp® CX402-T Bluetooth Low Energy temperature data loggers monitor temperatures in refrigerators, freezers, and other temperature-controlled environments to comply with global GDP requirements. The loggers communicate wirelessly via Bluetooth Low Energy to mobile devices. Using the InTemp app, you can easily view data, check logger status, set alarms, and create and share secure PDF reports for streamlined reporting and regulatory compliance.

All loggers feature a built-in LCD display to view current and daily min and max temperatures, advanced audible and visual alarm capabilities for notification of temperature excursions, an internal sensor for ambient temperature monitoring, and a single-point NIST Certification of Calibration for both the logger body and probe. External temperature probe is available with a 2- or 4-meter flat ribbon cable for tracking actual refrigerator temperatures without Glycol buffers or freezer applications.

With the optional CX Gateway, you can get remote notifications of temperature excursions and automatically download data from loggers within range of the device.


This product can be used in the following applications:

Here's how some of our customers use this product...

A Teaching Device for Science Class

The Background: Our customer is a science teacher seeking an accurate and calibrated data logger for use with science experiments her students perform in her classroom.

The Problem: The customer wants something wireless so the display could be passed around the room and also checked from a moderate distance away.

The Solution: We recommended the InTemp CX402-T Bluetooth Low Energy temperature data logger. The Bluetooth connectivity allows any student to connect to it and read data without being able to change the settings on the device.

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