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MEMS Hydrogen sulfide H2S Sensor

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    Introduction
    H2S sensor is MEMS-technology based gas sensor with semiconductor nano material as sensing material, which can detect H2S of different concentrations in different environmental conditions.

     

    Feature
    The sensor has the characteristics of small size, low power consumption, high sensitivity, long lifetime

     

    Main Application
    •Air cleaners and purifiers; Food freshness monitoring; Portable air detector;
    •Public toilet odor monitoring; Deodorant Machine etc…

     

    Technical Parameters

    Sensor Model

    S1007

    Sensor style

    MEMS semiconductor sensor

    Standard Package

    Ceramic Package

    Detected Gas

    H2S

    Detection Range/ppm

    0 ~ 3 ppm (H2S)

    Resolution/ppm

    0.01 ppm

    Circuit Voltage

    Circuit Voltage

    VC

    5V or 3.3V DC

    Heating Voltage

    VH+

    1.8 ± 0.05 V DC

    Load Resistance

    RL

    Adjustable

    Sensor Unit Characteristics

    Heating Resistance

    RH

    43±5 Ω(Room Temperature

    Heating Power

    RH

    ≤ 36mW

    Sensor Resistance

    Rs

    10~100 KΩ(in air)

    Sensitivity

    S

    R0 (in air)/Rs (in 0.2 ppm H2S) ≥ 1.8

    Slope

    a

    ≤ 0.5(R 1  ppm/R 0.2ppmH2S

    Standard Test Conditions

    Temperature

    Humidity

    20±2 ℃;55±5% RH

    Standard Test

    circuit

    VC :5 V or 3.3±0.1 V VH :1.8V±0.05V

    Preheating time

    3-5 min

    Response TimeT90

    <30 s

    Recovery TimeT10

    <60 s

    Expected Lifetime

    ≥3 Years