Product Details
MH-441D Universal Intelligent Infrared Gas Sensor NDIR For
Industrial Process And Safety Protection Monitoring
Main Applications:
- HVAC (Heating, Ventilation, and Air Conditioning) and indoor air
quality monitoring.
- Industrial process and safety protection monitoring.
- Agricultural and animal husbandry production process monitoring.
Product Characteristics:
- High sensitivity, high resolution, low power consumption, and fast
response time.
- Multiple output modes: UART, analog voltage, etc.
- Resistance to water vapor interference, non-toxic, and can directly
replace catalytic combustion principle sensors.
- Suitable for use in high-density dust environments.
- Temperature compensation function for excellent linear output.
- Long service life (≥5 years) and IP54 protection level.
Detected Gas | Methane (CH₄) |
Operating Voltage | 3.6~5V DC (powered by safety barrier) |
Average Current | <85mA (peak current <100mA) @5VDC |
Measurement Range | Selectable within 0~10%Vol |
Interface Level | 3.0V |
Output Signals | UART - TTL (3.3V compatible with 5V), 0.4~2V |
Warm-up Time | 3min |
Response Time | T₉₀ <30s |
Operating Temperature | -20~60℃ |
Operating Humidity | 0~95%RH (non-condensing) |
Dimensions | Φ20×22.4mm |
Weight | 35g |
Service Life | >5 years |
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.

