BAR20
USB precision barometer
Operating range: | 1 à 120 kPa (10 à 1200 mbar) | |
Accuracy (at 25°C): | ±0.15 kPa (1.5 mbar) | |
Resolution: | 0.0065 kPa (0.065 mbar) |
- User-accessible internal temperature reading (for calibration purposes)
- 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
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
- One portal page to easily get started
- Easily switch between USB CLI and Wi-Fi/Ethernet CLI
- Code samples available for many programming languages
- Usable with LabView (Guide here)
All command-line tools (CLI) are packaged with DracalView











Description
BAR20: USB sensor for accurate measurement of atmospheric pressure and altitude.
The BAR20, a member of the BAR series, is a digital barometer operating within a range of 1 kPa to 120 kPa with high precision. Its unique USB key-like design allows seamless integration into various systems.
Like all Dracal measuring instruments, the BAR20 is compatible with free software tools, making it an essential component of a DAQ solution. For those looking to integrate the BAR20 into their system, two options are available: command-line tools and VCP mode. If you prefer a graphical interface, DracalView is the appropriate choice.
Easy to use in your applications
- Virtual COM option (VCP)
- dracal-usb-get: command-line data integration tool
- dracal-sensgate-get: command-line tool for wireless access to sensors connected to a SensGate
- RVCP: REST API for wireless access to VCP instruments connected to a SensGate
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
- Altimeter
- Navigation system
What is included
- One (1) BAR20 unit
- Quick installation guide
- Data acquisition solution for DAQ system