TRH420

Precision USB temperature and relative humidity sensor

SPECIFICATIONS OVERVIEW
Temperature (°C): -40 to 70 ±0.1
Relative humidity (%RH): 0 to 100 ±1.5
Dew point: Calculated in real-time
  • 2-layer filter
  • Efficiency: >99.99% of particles as small as 200 nm
  • RoHS3 and CE compliant
  • 3 years warranty

PRODUCT OPTIONS

  • 3-point user calibration mechanism (CAL option)
  • COM communication (VCP option)
  • Traceable to the CNRC (NIST) certificates

 

PDF Icon  Datasheet.pdf    User manual.pdf

 

FREE DATA LOGGING AND MONITORING SOFTWARE

Learn more and download DracalView:

  • Get up-and-running in less than 3 minutes
  • Operates under Windows, Mac OS X and Linux
  • Real-time on-screen graphing and logging
  • Configurable log file format
  • Log interval down to 0.5 second
  • Configurable units (°C, °F, K…)
  • Simultaneous use of unlimited Dracal sensors supported
  • Simple user-calibration (products with the  CAL option)
  • Connectivity with SensGate Wi-Fi/Ethernet gateway

EASY TO INTEGRATE IN YOUR OWN APPLICATION

All command-line tools (CLI) are packaged with DracalView

Overview
Characteristics
Datasheets
Documentation
FAQ

Description

 

TRH420: High-Precision USB Temperature and Relative Humidity Sensor.

The TRH420, a member of the TRH series, is a USB sensor designed for environmental temperature and relative humidity measurements, offering improved precision of ±0.1°C for temperature and ±1.5%RH for relative humidity. Its digitally calibrated, linearized, and factory-compensated sensor allows precise and interchangeable measurements, with a probe operating range of -40°C to 70°C. With a resolution of 0.015°C for temperature and 0.01%RH for relative humidity, it is ideally suited for applications requiring precise monitoring of these parameters. Its 1-meter USB cable and USB-powered operation provide excellent installation flexibility, while its robust design protects it against challenging environmental conditions.

Like all Dracal measurement instruments, the TRH420 is compatible with free software tools, making it an essential component of a DAQ solution. For those who wish to integrate the TRH420 into their system, there are two options available: command line tools and VCP mode. If you prefer a graphical interface, DracalView is the appropriate choice.

Easy to use in your applications

Multiple integration and code examples, including Python, C, C++, Java, Node.js, C#, Grafana and LabVIEW.

Free data monitoring and calibration software

Be instantly operational with DracalView: our free data visualization, logging and calibration software

  • Works under Windows (Win7/8/10/11 64&32-bit), Mac OS X and Linux
  • Simultaneous visualization and logging of an unlimited number of sensors
  • Automatic synchronization with our Wi-Fi gateway
  • Easy calibration mechanism open to the end-user

Application examples

 

What is included

 
  • One (1) TRH420 measuring instrument
  • One (1) USB Cable
  • Quick installation guide
  • Data acquisition solution for DAQ system

Available options