Product Details
4CH2O-100 Electrochemical Three - Electrode Gas Sensor For Indoor
Air Quality Monitoring Devices
1. Applications (Product Uses):
- Suitable for indoor air quality monitoring devices (e.g., household
formaldehyde detectors, commercial indoor air monitors) to
real-time detect formaldehyde concentration and prevent health
risks from excessive CH₂O.
- Applied in industrial workplace safety systems (e.g., furniture
manufacturing workshops, paint spraying workshops) to monitor
formaldehyde emissions during production and ensure compliance with
occupational health standards.
- Used in HVAC (Heating, Ventilation, and Air Conditioning) systems
with air purification functions, enabling the system to adjust
filtration intensity based on real-time formaldehyde data and
optimize indoor air environment.
- Integrated into environmental testing equipment (e.g., portable air
quality analyzers) for on-site detection of formaldehyde in newly
decorated rooms, public places (hospitals, schools), or polluted
areas.
2. Features (Product Characteristics):
- High measurement accuracy: Adopts electrochemical three-electrode
principle, with repeatability <±2% signal and linear output,
ensuring reliable and precise formaldehyde concentration data.
- Fast response & high resolution: Response time (T90) ≤60s for quick
capture of concentration changes; 0.5ppm resolution allows
detection of trace formaldehyde, meeting strict monitoring
requirements.
- Stable long-term performance: Long-term stability <2% signal
value/month, reducing frequent calibration frequency and lowering
maintenance costs for equipment.
- Wide environmental adaptability: Operates in -20°C~50°C temperature
range and 15%~90% RH (non-condensing) humidity range, suitable for
most indoor and industrial on-site environments.
- Low cross-sensitivity: Negligible response to non-target gases
(e.g., methane, carbon dioxide) and low interference from gases
like carbon monoxide, ensuring accurate measurement of formaldehyde
without false alarms.
Parameter Category | Parameter Name | Specification |
|---|
| Core Performance | Measurement Principle | Electrochemical three-electrode |
| Measurement Range (CH₂O) | 0 ~ 100 ppm |
| Sensitivity | 300 ± 100 nA/ppm |
| Response Time (T90) | ≤ 60 s |
| Repeatability | < ±2% signal |
| Resolution | 0.5 ppm |
| Electrical Parameters | Bias Voltage | 0 mV |
| Recommended Load Resistance | 5 ~ 30 Ω |
| Environmental Adaptability | Operating Temperature Range | -20°C ~ 50°C |
| Operating Humidity Range | 15% RH ~ 90% RH (non-condensing) |
| Operating Pressure Range | 800 ~ 1200 mbar |
| Mechanical & Lifetime | Product Dimensions | Φ20 mm |
| Recommended Storage Temperature | 0°C ~ 20°C |
| Storage Lifetime (Sealed) | 2 years (sealed storage) |
| In-Package Storage Lifetime | 6 months (original packaging bottle) |
| In-Use Lifetime | 12 months |
Company Profile
Yijiajie Electronics is a full range of silicon pressure sensors
from the United States, FREESCALE/, GE, MEAS, SMI, and a full range
of sensing and control products from the United States pressure,
temperature and humidity, gas flow, current, Hall effect, etc.,
Japan HAMAMATSU flame, UV sensors, photodiodes, Japan FIGARO, UK
CITY, ALPHASENSE full range of semiconductors, catalytic,
electrochemical gas sensors, French HUMIREL/MEAS humidity sensors
and other international well-known companies authorized agents or
distributors, to provide customers with product information,
products Solutions, product selection, supply guarantee and
logistics services, etc.

