Product Overview


QTI’s small, at-disc USB thermometer is a great general-use indoor temperature sensor. This repositionable probe features a stainless steel disc and 10’ of durable PVC cable that enables you to monitor and log temperature remotely.

Product Description

  • USB thermometer
  • Operating temperature range: -40°C to 105°C
  • #24 AWG leads
  • Stainless steel disc housing
  • Data logging and alert notification software included
  • Multiple sensors supported
  • Measures Fahrenheit, Celsius and Kelvin
  • Use as a plug-and-play Windows device or with custom software
  • NIST traceable certification available
  • Able to be re-calibrated by QTI
  • RoHS-compliant

Documents and Catalogs

DTU6009-001 Datasheet

DirecTemp Specifications

A high-precision thermistor is combined with a 14-bit analog to digital converter and a simple USB communication interface to capture real-time temperature data. The DirecTemp® device can communicate either as a Human Interface Device which auto installs to interface with the DirecTemp® data logging software, or as a virtual serial port with which custom or third party software may be used. DirecTemp® probes are calibrated in QTI’s metrology laboratory and can be re-calibrated and returned to service for extended life.The absolute accuracy and repeatable precision of the DirecTemp® USB temperature acquisition system will become invaluable to your most critical application.


  • Up to 0.1°C absolute accuracy
  • Up to 0.01 resolution
  • Chooose probe style, cable length, and critical temperature point
  • PC powered, no batteries
  • Temperature range: -55°C to 150°C with proper probe selection
  • RoHS Compliant


*User specified single point temperature and tolerances available.
Warning: Do not use in human life support applications.
This device is not designed nor intended to operate in situations where human injury will result in the event of a failure.