The Yocto-VOC-V3 device lets you estimate via USB the quantity of volatile organic compounds (VOCs) in ambient air, measured in CO2-equivalent ppm and TVOC. It also measures the ambient temperature and humidity. Measurements can be recorded on the internal flash for later retrieval when connected again by USB.

This device is ideal to monitor the air quality in residential, commercial and industrial spaces. The CMOSens metal oxide sensor used in this device measures the variation of total volatile organic compounds in ambient air, and uses it to estimate their concentration in ppm CO2 equivalents (relative) and in ppb total volatile organic compounds (TVOC). This sensor only needs 15 seconds to provide the first VOC estimation. The VOC estimation is compensated for humidity changes thanks to the embedded humidity sensor.

The sensor measures relative variations of volatile organic compounds to provide an estimated ppm value, with an automatic baseline correction. The absolute value must therefore be interpreted with great care, as it is subject to drift. It is not comparable with the absolute value returned by a Yocto-CO2-V2 for instance, but it has the advantage of including a broader range of volatile organic compounds than a simple CO2 sensor.

The sensor part can be split from the main USB board and moved several meters away using ribbon cable, soldered on the designed contact pads. This may be useful to move the sensor in close proximity to HVAC ducts.

This device can be connected directly to an Ethernet network using a YoctoHub-Ethernet, to a WiFi network using a YoctoHub-Wireless-n and to a GSM network using a YoctoHub-GSM.

Yocto-VOC-V3 Yocto-VOC-V3 Yocto-VOC-V3 Enclosure to be ordered separately

USB cables and enclosures to be ordered separately.

CHF 78.43

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Hardware release:Rev. B
Product ID:YVOCMK03
Product name:Yocto-VOC-V3
USB connector:micro-B
Sensor:SGP30, SHT35 (Sensirion)
Refresh rate:1Hz
Measuring range (CO2 eq.):0...60000ppm
Measuring range (TVOC):0...60000ppb
Accuracy (H):1.5%
Accuracy (T):0.2░C
Protection class, according to IEC 61140:class III
Normal operating temperature:5...40░C
Extended operating temperature2:-30...85░C
Supported Operating Systems:Windows (PC + IoT), Linux (Intel + ARM), macOS, Android
Drivers:Driverless, no driver needed
API / SDK / Libraries:C++ Obj-C C# VB.NET UWP Delphi Python Java Android LabVIEW
API / SDK / Libraries (TCP only):Javascript Node.js PHP
RoHS compliance:RoHS III (2011/65/UE+2015/863)
Suggested enclosure:YoctoBox-Long-Thin-Transp-Vents
Harmonized tariff code:9032.9000
Cables and enclosures:available separately
Made in:Switzerland

1 These specifications are for the current hardware revision. Specifications for earlier revisions may differ.
2 The extended temperature range is defined based on components specifications and has been tested during a limited duration (1h). When using the device in harsh environments for a long period of time, we strongly advise to run extensive tests before going to production.

Accessories and related products

YoctoBox-Long-Thin-Black-Vents, Enclosure for Yoctopuce device (long, thin, black, vents)Fix-2.5mm, screws and spacersUSB-A-MicroB-50, USB 2.0 type A to Micro-B data cable, 50 cm

Related articles and application examples


User manual (HTML)
User manual (PDF)
Product brief
3D file (STEP)
RoHS certificate
Most recent firmware52888 (01/25/2023)
Programming libraries61813 (07/05/2024)
Command line API61813 (07/05/2024)
VirtualHub application61813 (07/05/2024)

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