Application:​Widely used for industrial field instrumentation, industrial-process control and safety protection.
Feature:High sensitivity, high resolution,low power consumption,Output method: IIC, analog voltage signal, etc.


100% MONEY


Availability: Out Of Stock
Categories: Industrial & Mining

Production Description:
MH-742B is a universal type intelligent sensor to detect combustible gas,taking advantage of non-dispersive infrared (NDIR) principle. With high selectivity, no oxygen dependence, high performance and long lifespan features, MH-742B also has built-in temperature compensation feature. MH-742B is a compact and high-performance sensor based on infrared absorption of gas detection technology, micro-machining and sophisticated circuit design.

  • High sensitivity, high resolution, low power consumption
  • Output method: IIC, analog voltage signal, etc.
  • Quick response
  • Temperature compensation, excellent linear output
  • Excellent stability, Long lifespan
  • Anti-poisons, anti-vapor interference
  • Detect combustible gas concentration matching with flame-proof marked detector in area 1&2 explosive environments which mix of ⅡA, ⅡB, ⅡC and T1-T6 flammable gases, vapors and air.

​Widely used for industrial field instrumentation, industrial-process control and safety protection.

    Main technical parameters:


    Product Model


    Gas Detected

    Combustible gas (see Table 2 for details)

    Working Voltage

    4.5 V ~ 5.5V DC

    Average Current

    < 100mA

    Interface Level


    Measurement Range

    0~100%VOL optional (view table 2)

    Output Signal


    0.4-2V DC

    Warm-up Time


    Response Time

    T90 < 30s

    Working Temperature

    -40℃ ~ 70℃

    Working Humidity

    0 to 95%RH, non-condensing






    >5 years

    Protected Class


    1. WORLDWIDE SHIPPING (Except some countries and APO/FPO)

    We provide Worldwide Shipping by DHL, Fedex, Standard shipping (China Post e-Packet) and some other shipping ways on ALL ITEMS!

    2. SERVICE TRANSIT TIME is provided by the carrier.
    • Reference Delivery time (working days):
    • DHL:3-7 days
    • Fedex:3-7 days
    • China Post e-Packet : 15-35 days

    Transit times may vary, particularly during the holiday season.

    We suggest you choose Expedited Shipping(DHL or FedEx) to ensure the products reach your home fast & safety.

    3. ORDERS PROCESSED TIMELY after the payment verification.

    We do our best to process & ship all orders as soon as possible. Most orders are processed within 48 hours.


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    b.We accept DROP SHIPPING. You can leave us your customer’s address, when you place an order,then your customers can get the goods directly.


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