The Yocto-milliVolt-Rx-BNC device is a high precision USB voltmeter. It will let you measure by USB very small voltages (down to a few dozens of microVolts, and up to 2V max), even when they are generated by extremely weak sources (very high impedance). The BNC connector makes it possible to bring the signal using a shielded coaxial cable.

Typical applications include measurement of electro-chemical reactions (e.g. pH and redox probes), low-voltage sensors (e.g. gaz sensors, etc) or Wheatstone bridges (e.g. load cells, etc). It is also possible to use this device to precisely measure the voltage drop accross a shunt to measure high currents.

The input circuit of this device uses a very low bias current amplifier (typ. 0.2 pA). The measure circuit is electrically isolated from the USB bus, which makes it possible to measure grounded voltages without risk of creating a ground loop.

For measuring less sensitive signals, you can use the variant of this product that has a rising cage connector, and which is significantly shorter.

This device can be connected directly to an Ethernet network using a YoctoHub-Ethernet, to a WiFi network using a YoctoHub-Wireless-g, it can even be connected to a GSM network thanks to the YoctoHub-GSM.

Enclosure available separately Yocto-milliVolt-Rx-BNC Yocto-milliVolt-Rx-BNC

USB cables and enclosure to be ordered separately.

CHF 62.75

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Manufacturer Product NumberRXMVOLT2
Product nameYocto-milliVolt-Rx-BNC
USB connectormicro-B
Input bias current (typ.)< 1pA
Refresh rate100Hz
Input impedance> 1000GΩ
Measuring range-1000 ... +2000mV
Supported Operating SystemsWindows, Linux (Intel + ARM), Mac OS X, Android
Driversno driver needed
API / SDK / Libraries (USB+TCP)C++, Objective-C, C#, VB .NET, Delphi, Python, Java/Android
API / SDK / Libraries (TCP only)Javascript, Node.js, PHP, Java
Suggested enclosureYoctoBox-Long-Thick-Black-BNC
Made inSwitzerland

Related articles and application examples

 Using the new Yocto-milliVolt-Rx for pH measures 

Accessories and related products

YoctoBox-Long-Thick-Black-BNC, Enclosure for Yocto-milliVolt-Rx-BNC (black base)YoctoBox-Long-Thick-Transp-BNC, Enclosure for Yocto-milliVolt-Rx-BNC (long thin transplucent)USB-A-MicroB-30, A to micro-B USB data cable, 30cmYoctoHub-Ethernet, Ethernet-enabled hub for Yoctopuce modules


User manual (HTML)
User manual (PDF)
3D file (STEP)
Last Firmware24473 (06/20/2016)
Library for Javascript25534 (10/10/2016)
Library for PHP25534 (10/10/2016)
Library for Objective C25534 (10/10/2016)
Library for C++25534 (10/10/2016)
Library for C#25534 (10/10/2016)
Library for VisualBasic .NET25534 (10/10/2016)
Library for Delphi25534 (10/10/2016)
Library for Python25534 (10/10/2016)
Library for Java25534 (10/10/2016)
Library for Android25534 (10/10/2016)
Library for Command line25250 (08/23/2016)
Virtual Hub for Windows25601 (10/19/2016)
Virtual Hub for Linux, Intel + ARM25601 (10/19/2016)
Virtual Hub for Mac-OS-X25601 (10/19/2016)

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