1 ppb resolution
Additional gas sensor
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HibouAir Duo Extended HCHO
Formaldehyde insight for your indoor studies.
Add formaldehyde measurements to your indoor monitoring project. Record HCHO alongside CO₂, three particulate matter fractions, temperature and humidity in a single compact BLE device.
HCHOFormaldehyde configuration
More in every measurement
HCHO
CO₂
PM1.0 / 2.5 / 10
Temperature
Humidity
Made for a clearer view
The gas you need.
The context that matters.
Dedicated additional gas sensing meets laser-scattering particulate measurement and NDIR CO₂ technology. Follow individual readings and the indoor conditions around them.
Plus temperature and humidity
Included in every variantSave readings at your preferred interval
Days, weeks or months of dataExplore an application
A materials laboratory, in context
Explore a materials research workspace where a team reviews formaldehyde measurements together with the indoor environment. Select a numbered point to explore.
Formaldehyde at ppb resolution
The HCHO sensor covers 0–1,000 ppb with 1 ppb resolution. Temperature, humidity, CO₂ and particles are recorded by the standard sensors.
The whole indoor picture
Every variant also includes CO₂, PM1.0, PM2.5, PM10, temperature and humidity. Review these measurements together to give your gas observations more context.
A record you can revisit
A built-in data logger offers storage intervals programmable in one-minute steps. Access historical data and generate PDF reports for analysis and sharing.
Materials research spaces
Bring formaldehyde observations into a broader indoor measurement record.
Interior assessment projects
Follow HCHO, particle and CO₂ measurements over the course of an indoor study.
Environmental documentation
Review historical trends and generate PDF reports for project records and sharing.
Built-in data logger
Capture now.
Understand over time.
Move beyond a single reading. Set the storage interval to suit your project, revisit historical measurements, and turn observations into PDF reports.
Read the datasheet- 01
Choose your interval
Programmable storage intervals in one-minute steps.
- 02
Build your history
Store measurements for days, weeks or months, depending on your preferred interval.
- 03
Share the observations
Access historical data and generate PDF reports for analysis and documentation.
Your monitor. Your setup.
Choose how you use it.
HibouAir Duo Extended HCHO
SSD002/4B-3 ·
Formaldehyde
Know your monitor
Specifications, in detail.
SSD002/4B-3
Technical specifications from the SSD002/4B datasheet,
version 2.0.
Additional gas sensor
| Measurement | Range | Resolution |
|---|---|---|
| Formaldehyde (HCHO) | 0–1,000 ppb | 1 ppb |
Additional gas sensing uses solid polymer electrochemical technology. Gas accuracy is not specified in this datasheet; resolution is shown separately above.
Core sensors included in every variant
| Measurement | Range | Accuracy |
|---|---|---|
| CO₂ | 400–10,000 ppm | ± (30 ppm / 3%) |
| PM1.0 / PM2.5 / PM10 | 0–1,000 µg/m³ | ±5 µg/m³ at 0–35 µg/m³; ±10% at 35–1,000 µg/m³ |
| Temperature | −5 to +65°C | ±0.5°C |
| Relative humidity | 0–100% r.H. | ±4% r.H. |
CO₂ accuracy notation is reproduced as supplied in the datasheet. Sensor measurement ranges and device working conditions are listed separately.
Device specifications
- Connectivity
- Bluetooth Low Energy 5.2
- Power
- +5 VDC input on micro USB connector
- Dimensions
- 88 × 88 × 33 mm
- Weight
- 250 g
- Working conditions
- −20°C to +65°C; humidity: 100% (as listed in the datasheet)
- Certification / compliance
- CE, RoHS, REACH
- Colour
- White
What does this variant measure?
HibouAir Duo Extended HCHO (SSD002/4B-3) includes formaldehyde monitoring, plus CO₂, PM1.0, PM2.5, PM10, temperature and humidity. Each Duo Extended variant has its own additional gas configuration.
Does the device connect directly to Wi-Fi?
This model uses Bluetooth Low Energy 5.2. For a computer or Cloud Enterprise deployment, discuss the required USB dongle or BLE gateway and application support with our team.
How is it powered?
The datasheet specifies a +5 VDC input through a micro USB connector. The enclosure measures 88 × 88 × 33 mm and weighs 250 g.
How long can it log measurements?
You can set the logging interval in one-minute steps to suit your monitoring needs. Depending on your preferred interval, the built-in data logger can store measurements for days, weeks or months. Choose a shorter interval for a more detailed record, or a longer interval to keep a history over a longer period.
What is included in the displayed price?
The displayed amount is the price of the selected device and quantity. Shipping, applicable tax, USB dongles, gateways and cloud plans are additional. Enquire with your preferred setup for a complete purchase quotation.