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Wuhan Cubic - Model CB-HCHO-V3 -Formaldehyde Gas Sensor
CB-HCHO-V3 is Cubic third generation formaldehyde gas sensor with electrochemical principle. It adopts a dual-channel structure design and unique electrolyte packaging technology for anti-interference. Through mathematical algorithms and scientific calibration, it can simultaneously output formaldehyde and TVOC. With built-in digital temperature and humidity sensor combined with intelligent algorithms, the concentration measurement is more accurate.
- High sensitivity up to 1ppb
- HCHO, VOC in-one design
- Full range temperature and humidity compensation
- Unique dual-channel design, good anti-interference
- Multiple communication methods：URAT、IIC、PWM
- Lifetime can reach 3 years (in air)
- Working principle: Electrochemical
- Measurement range: HCHO: 0~1ppm;
- VOC:0~10ppm(equivalent alcohol concentration);
- TVOC: 0~10ppm(equivalent alcohol concentration);
- HCHO measurement accuracy: ≤0.1ppm:±0.025ppm >0.1ppm:±25% reading(Reference instrument: Gasera One,25±2℃,50±10%RH)
- Resolution: HCHO:1ppb;
- VOC:0.01ppm;
- TVOC:0.01ppm
- Response time T90: 50s (@25±2℃,50±10%RH)
- Working condition: 0~40℃;15~95%RH(Non-condensing)
- Storage condition: -20~50℃;0~95%RH(Non-condensing)
- Working voltage: DC(+3. 5V ~ +5.5V)
- Working current: <15mA
- Signal output: UART_TTL(3.3V);IIC(Reserved);PWM(Reserved)
- Dimensions: W23*H32*D7(mm)
- Lifetime: 3 years (@0.1ppm Formaldehyde concentration)
Air Purifier
Air pollution contributes to millions of premature deaths throughout the world each year. In China, rapid industrialization has wrought intense levels of air pollution that poses a serious threat.
Fresh Air System Controller
For the purpose of achieving energy saving and comfort environment, and with wide spread of internet+ and IoT, especially CO2 and particle sensors development, HVAC system is developing very fast.
Air Quality Monitor
With the improvement of people`s living standards, more and more people begin to pay attention to the air quality of their living environment.
Electrochemistry Principle Schematic Diagram
The formaldehyde gas molecules in the air enter the sensor through the gas-permeable membrane. And after oxidation and reduction reactions, electron transfer will result in the positive movement of the electrons, carrying an electric current. This current signal will be amplified and then output. The current size is directly proportional to the formaldehyde content in the air.
