iconUSB Precision barometer
USB-connected barometer for precise measurement and logging of atmospheric pressure or altitude.

Product Description:

Discontinued product. Replaced by: USB-BAR20
This USB-connected barometer allows for precise measurement of atmospheric pressure (1 to 120 kPa) or altitude. Thanks to the use of a high resolution ADC (24-bitΔΣ), very small changes in atmospheric pressure can be sensed. If used to compute altitude, variations as small as 10cm can be measured. Designed as a compact USB-Key form factor for easy integration even in space-constrained applications.


  • Atmospheric sensor specs:
    • Range: 1 to 120 kPa
    • Accuracy: ±0.15 kPa at 25 °C
    • Resolution: 0.0065 kPa (24-bitΔΣ ADC)
  • Internal temperature sensor (typ. -0+3°C at 25°C)
  • Operating temperature: -20°C to +70°C.
  • Enclosure: ABS Plastic, USB-key form factor.


  • Supported by our free QTenki data logger software.
    • Works under Windows (XP, Win7/8/10 64&32-bit) and Linux.
    • Configurable log file format.
    • Configurable log interval. (from 1 second to one year)
    • Simultaneous use of multiple sensors possible.
  • Can also be used in LabView (Guide here)

Picture Gallery:


This product


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Example: Pressure in elevator

Download(s) & Link(s):
QTenki software (Windows/Linux) for our USB sensor productsView

LabVIEW is a trademark of National Instruments. Neither Dracal Technologies inc., nor any software programs or other goods or services offered by Dracal Technologies inc., are affiliated with, endorsed by, or sponsored by National Instruments.

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