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Summary:
MEMS NO2 gas sensor is using MEMS micro-fabrication hot plate on a Si substrate base, gas-sensitive materials used in the clean air is low conductivity metal oxide semiconductor material. When the sensor exposed to gas atmosphere, the conductivity is changing as the detected gas concentration in the air. The higher the concentration of the gas, the higher the conductivity. Use simple circuit can convert the change of conductivity of the gas concentration corresponding to the output signal.
Feature:
* MEMS technology, Strong construction
* High sensitivity to NO2 gas
* Small sizes and low power consumption
* Fast response and resume
* Simple drive circuit, Long lifespan
APPLICATION
Formaldehyde detector is an instrument for detecting formaldehyde. Generally, semiconductor sensors and electrochemical sensors are used to realize the rapid semi-quantification of formaldehyde in indoor air on the spot, which is characterized by simple structure, small size, intuitive,easy to carry and use.
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PARAMETER
Technical Data Sheet
Part No. | GM-102B | ||
Sensor Type | MEMS | ||
Standard Encapsulation | Ceramic | ||
Detection Gas | NO2 | ||
Detection Range | 0.1~10ppm (NO2) | ||
Standard Circuit Conditions | Loop Voltage | VC | ≤24V DC |
Heater Voltage | VH | 2.0V±0.1V AC or DC | |
Load Resistance | RL | Adjustable | |
Sensor character under standard test conditions | Heater Resistance | RH | 80Ω±20Ω(room temperature) |
Heater consumption | PH | ≤40mW | |
sensitive materials resistance | RS | 10KΩ~1000KΩ(in 2ppm NO2) | |
Sensitivity | S | R0(in air)/RS(in 2ppm NO2)≤ 0.5 | |
Standard test conditions | Temp. Humidity | 20℃±2℃;55%±5%RH | |
Standard test circuit | VH:2.0V±0.1V; VC :5.0V±0.1V |

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As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:
RELATED PRODUCTS
As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:
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