iconUSB-RTD200b: 2/3 Wire RTD sensor to USB adapter with barometer
Connect any PT-100 RTD sensor to an USB port with this adapter to measure temperature, and barometric pressure with a built-in sensor.
114.95 $ CAD
(approx. 90.87$ USD )

Product Description:

This USB interface for RTD sensors allows for precise temperature measurement and has a built-in barometric sensor. It supports a wide variety of 2 and 3-wire 100 ohms RTDs, such as Pt100 sensor probes[1].

Sensors connect using a convenient standard mini RTD connector and the compact USB-key form factor simplifies integration even in space-constrained applications.

  • Temperature range: -200 °C to 600 °C[2]
  • ADC resolution: 18-bit
  • Resolution: Typically 0.02 °C
  • Precision: ±0.06 °C or better[3]
  • Sensing Element Type: 2 or 3 wire RTD 100Ω sensors (Pt100 type)
  • Connection: Polarized 3-pin standard[1] miniature receptacle.
    One (1) CONN-RTD-3PM mating connector included
  • Built-in barometer:
    • Pressure range: 1 to 120 kPa (0.01 to 1200 millibar)
    • Resolution: 0.0065 kPa (0.065 millibar)
    • Accuracy: ±0.15 kPa at 25°C (1.5 millibar)
  • Enclosure operating temperature: -20 °C to 70 °C
  • Enclosure: ABS Plastic, USB-key form factor
  • Communication: USB 2.0


Traceable calibration certificate available on demand.
  • Temperature computed using the DIN 43760 coefficients.
  • Supported by our free QTenki data logger software.
  • Works under Windows (XP, Win7/8/10 64&32-bit), Linux and MacOS X
  • Simultaneous use of multiple units possible.
  • Can also be used in LabView[4] (Guide here)

Picture Gallery:


This product (top)


This product (connector)


Easy connection


Wiring diagram


Example use


Included RTD connector


Included RTD connector


Included RTD connector

Ships within 3 business days (*)
Item #DescriptionPriceAvailabilityAdd to cartcart
USB-RTD200b 2/3 Wire RTD sensor to USB adapter with barometer $114.95 In stock
Note: Prices are in canadian dollars (CAD) and may change without prior notice. If necessary, currency conversion will be done automatically by PayPal.

*: Orders are normally prepared and shipped within 3 business days. The transit time varies according to the country of destination, but between 4 and 10 business days are typical. Business days are Monday to Friday, with the exception of holidays (Canadian or in the distination country).

Download(s) & Link(s):
Datasheet601047 - Datasheet USB-RTD200b.pdf
QTenki software (Windows/Linux) for our USB sensor productsView

[1] Not all pre-wired probes are wired the same and may requires wiring re-arrangment in its connector. See Wiring diagram picture on this page.
[2] The actual limits depend on the model of RTD used.
[3] Accuracy depends on the type and RTD class used.
[4] 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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