MP905 Air-Quality Gas Sensor

For harmful gas detection, automatic exhaust device, air cleaner

Applications :

*household and office for harmful gas detection
*automatic exhaust device
*air cleaner

Product Advantages:
  • *High sensitivity to alcohol, smoke, formaldehyde, toluene, acetone, benzene
  • *lighter gas, paint
  • *quick response and resume
  • *low power consumption
  • *simple detection circuit
  • *good stability and long life
Product Description:

MP905 gas sensor is for air quality. It adopts multilayer thick film manufacturing technology. The heater and metal oxide semiconductor material on the ceramic substrate of subminiature Al2O3 are fetched out by electrode down-lead, encapsulated in metal socket and cap. Conductivity of the sensor is affected by the concentration of target gas. The higher the concentration is, the higher conductivity of sensor gets. Users can adopt simple circuit to convert variation of conductivity into output signal corresponding to gas concentration.

Technical Parameters:
Model MP905
Sensor Type Semiconductor flat surfaced sensor
Standard Encapsulation Metal Cap
Detection Gas benzene,toluene,formaldehyde,al cohol,smoke,lighter gas,paints etc.
Detection range 0.5~1000ppm(alcohol)
Standard circuit Loop voltage Vc/ VH 5.0V±0.1V DC
Load resistance RL Adjustable
sensor features in standard test condition Heating resistance RH 95Ω±10Ω(Room Tem.)
Heating consumption PH ≤300mW
Surface resistance RS 1KΩ~15KΩ(in 10ppm alcohol)
Sensitivity S Rs(in air)/Rs(in 10ppm alcohol)≥2
Concentration slope α ≤0.6(R 50ppm/R 10ppm alcohol)
Standard condition of test Temperature, humidity 20℃±2℃;65%±5%RH
Standard test circuit VC/VH :5.0V±0.1V
Warm-up time More than 48 hours
The Latest Manual

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