VOC100
USB VOC, temperature and relative humidity sensor
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Volume discounts available for modular OEM integration projects. Contact sales@dracal.com for more information.
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| Volatile Organic Compounds (ppb): | 0 to 32,768 | Semi-Quantitative |
| Temperature (°C): | -40 to 70 | ±0.3 |
| Relative humidity (%RH): | 10 to 95 | ±2.0 |
| Dew point | Calculated in real-time |
- 2-layer filter
- Efficiency: >99.99% of particles as small as 200 nm
- RoHS3 and CE compliant
- 3 years warranty
PRODUCT OPTIONS
- 3-point user calibration mechanism (CAL option) for temperature and humidity
- COM communication (VCP option)
- Traceable to the CNRC (NIST) certificates for temperature and humidity
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
VOC100: All-in-One USB Sensor for Indoor Air Quality Monitoring
The VOC100 is an all-in-one USB sensor for indoor air quality monitoring, measuring volatile organic compounds (VOCs) with a range of 0 to 32,768 ppb and semi-quantitative precision. Equipped with an AMS CCS811 digital gas sensor, it detects various compounds such as paints, solvents, alcohols, and refrigerants. It also features a temperature and relative humidity sensor for accurate measurements.
Like all Dracal measurement instruments, the VOC100 is compatible with free software tools, making it an essential component of a DAQ solution. For those who wish to integrate the VOC100 into their system, there are two options 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
Possible applications
- Indoor Air Quality (IAQ) monitoring
- Home, offices, laboratories
- OEM integration
- Laboratories
- Engineering and R&D
- Education
What is included
- One (1) VOC100 unit
- USB cable
- Quick installation guide
- Data acquisition solution for DAQ system
Available options
Specifications
Volatile Organic Compounds
- TVOC Range: From 0 to 32,768 ppb
- Accuracy: Semi-Quantitative
- Sensor IC: AMS CCS811
- Computes eCO2 (CO2 equivalent based on TVOC)
Temperature (probe)
- Probe operating range: -40°C to 70°C
- Accuracy (typical):
- ±0.3°C (20°C to 60°C)
- ±0.4°C (-40°C to 70°C)
- Resolution (typical): 0.015°C
- Repeatability (typical): 0.06°C
Relative humidity (probe)
- Operating range: 0 to 100 %RH
- Accuracy at 25°C (typical)
- ±2.0 %RH (0 to 80 %RH)
- ±4.5 %RH (90 to 100 %RH)
- Accuracy at 0 to 70°C (typical)
- ±2.0 %RH from 0 to 70 %RH
- Resolution (typical): 0.01 %RH
- Repeatability: 0.1 %RH
Probe filters
- First filter material: Polyethylene terephthalate (PET) mesh

- Second filter material: PTFE membrane
- Efficiency: >99.99% for particles of 200 nm
Miscellaneous
- USB cable length: 1 meter (3 ft)
- Operating temperature ranges (USB cable interface): 0°C to 70°C
- Powered through USB
- RoHS3 and CE compliant.
Available channels
(As displayed in our logging software DracalView)
| Channel Id* | Description | Type | Nature |
|---|---|---|---|
| 00 | CCS811 TVOC PPM | Gas PPM | Real |
| 01 | CCS811 eCO2 PPM | Gas PPM | Real |
| 02 | SHT31 Temperature | Temperature | Real |
| 03 | SHT31 Relative Humidity | Relative Humidity | Real |
| 04 | Dew point | Dew point | Virtual |
| 05 | Humidex | Humidex | Virtual |
| 06 | Heat index | Heat index | Virtual |
Virtual COM port communication protocol (option)
This product is available with the option of communication via virtual COM port protocol. Products with this option can be freely converted between USB and VCP communication modes. For more information about this option, consult the documentation of the VCP option.
Of note, for Windows 7 users, here is the installation procedure.
Here is what the invocation of the command INFO returns for this product:
I,Product ID,Serial Number,Message,CCS811 TVOC PPB,ppb,CCS811 eCO2 PPM,ppm,SHT31 Temperature,C,SHT31 Relative Humidity,%,*DB29
as well as an example of what this product transmits:
D,VCP-VOC100,E13563,,0,ppb,400,ppm,24.3751,C,62.3606,%,*CA03
D,VCP-VOC100,E13563,,64,ppb,822,ppm,24.3484,C,62.9969,%,*8BB1
D,VCP-VOC100,E13563,,49,ppb,728,ppm,24.3351,C,63.7781,%,*7794
D,VCP-VOC100,E13563,,155,ppb,1418,ppm,26.2497,C,83.4562,%,*C419
D,VCP-VOC100,E13563,,82,ppb,941,ppm,26.8959,C,89.865,%,*D368
3-point user calibration mechanism (option)
This product can be equiped with a 3-point user calibration mechanism. Devices equiped with this feature are eligible for calibration and certification in an accredited ISO/IEC 17025 laboratory. You will find here more information about NIST traceable certificates.
Free data logging software
- Real-time on-screen graphing and logging
- Supported by our DracalView data logger software and tools
- Not yet supported by DracalView for Android™
- Operates under Windows (XP, Win7/8/10 64&32-bit), Mac OS X and Linux
- Configurable log file format with log interval down to 1 second
- Configurable units (°C, °F, K...)
- Simultaneous use of an unlimited [2] Dracal sensors supported
- Command-line tool dracal-usb-get also available (packaged with DracalView)
- Use it in your own application easily! We provide code samples for many programming languages
- Usable with LabView[†] ( Guide here )
- And much more! Visit our DracalView data logger WEB page for more information
Do you have STEP/CAD files of your instruments?
You can find them on each instrument page under the Datasheets tab if available.
Are your sensors battery-powered?
No, they are not. They are powered via the USB plug; therefore, they must be plugged in to transmit data.
Why are my readings 0.00 when I plug the VOC100?
The VOC100 needs about 30 minutes to perform a baseline calculation of the compounds to produce reliable results.
How sensitive is the VOC100?
It is very sensitive to many compounds and sudden variations in temperature and humidity. The output is additive when many compounds are detected. These can include temperature and humidity variations.
Slower changes than the adaptation rate of the instrument should minimize the impact of temperature and humidity variation.
What do you mean by “semi-quantitative” readings?
The technology of the volatile-organic compound sensor used in the VOC100 allows the detection of several components simultaneously and works with a precision of about 15%.
How do I request a quote?
We have created the easiest possible quote request system for you.
1. Create an account and log in.
2. Then do whatever you would do while shopping, then click on the shopping cart in the top right.
3. In your cart, click on “Switch to quote”, then at the bottom of the page “Proceed to quote”. You will not be asked for any payment information.
You will then receive a quote by email, which you can accept and pay within 30 days.
What are the advantages of choosing a calibratable instrument (-CAL option)?
The devices with the 3-point calibration mechanism have a longer lifetime as it is possible to compensate for the natural drift of the measurements. The cost/lifetime ratio is thus considerably reduced and, just as importantly, this choice is environmental friendly.
These devices can be easily calibrated and certified by external resources (including our ISO17025 certified partner laboratory) and allow you to synchronize your various devices between them.
What are the advantages of using your USB communicating devices over other technologies?
| 1. Connection security. | 6. Continuous power supply. |
| 2. Instant access to data. | 7. Low-power supply. |
| 3. Data confidentiality. | 8. Self-sufficiency. |
| 4. Data reliability. | 9. Technology persistence over time. |
| 5. Fast response time. | 10. Universal access. |
Can I use your measurement devices while maintaining my current software infrastructure?
Yes, you own your data. To integrate your data, you can either use our CLI (command line interface) for which we have plenty of code examples or for more advanced users, by choosing the VCP (Virtual COM Port) option when selecting your product.
How many devices can be simultaneously managed by your software tools?
Unlimited number of similar and different devices, provided your system supports the load.
What is your warranty policy?
Dracal Technologies guarantees the incomparable speed of use and the exceptional quality of its products, that they are made of new materials, assembled and tested in our factory in Canada, in processes that respect human rights and the environment. We guarantee the absolute absence of any form of programmed obsolescence, and that conversely, we deploy sustained efforts on both our electrical and mechanical designs to extend the life of our devices as long as possible so that the results of the efforts invested by our customers last over time but also, and just as importantly, to preserve our planet. We guarantee unlimited access to all updates of our free software tools. We offer a 2-year material warranty.