Description:
The DFRobot Fermion MEMS series gas sensor uses MEMS technology to manufacture micro hotplates on a Si substrate, and the gas-sensitive material used is a metal oxide semiconductor material with low conductivity in clean air. When the detected gas is present in the ambient air, the conductivity of the sensor changes, and the higher the concentration of the gas, the higher the conductivity of the sensor.
The structure of this sensor series is robust, and a simple circuit can be used to convert the change in conductivity into an output signal that corresponds to the concentration of the gas. Its small size and low power consumption also make it easy to integrate with other devices.
Specifications:
- Gas types detected: NH3
- Detection range: 1～300ppm
- Operating temperature: -10～50℃
- Operating humidity: 15～90%RH
- Lifespan: ≥5 years
- Operating voltage: 3.3～5V
- Operating current: ＜20mA
- Power consumption: 0.45W
Features:
- Low power consumption, operating current ＜20mA
- High sensitivity and rapid response recovery
- Advanced MEMS technology
- Gas detected: Ammonia (NH3)
- Sensitivity: R0(in air)/Rs (in 50ppm NH3) ≥ 3
- Lifespan: ≥5 years (in air)
Precautions:
- Kindly remove the protective film before usage.
- Avoid exposure to high concentrations of corrosive gases (such as H2S, SOX, Cl2, HCl, etc.).
- To prevent exposure to volatile silicon compounds vapors (such as silicone adhesive, hair gel, silicone rubber, or other locations where volatile silicon compounds are present).
- Please refrain from employing this module in systems that involve personal safety concerns.
- Avoid contact with water, condensation, and freezing.
- Prevent contamination from alkalis, alkali metal salts, and halogens.
- Refrain from prolonged exposure to extreme environments (such as high temperatures, high humidity, and high pollution).
- Minimize excessive vibration, impact, and dropping.
- For extended periods of non-usage, it is advisable to preheat the module for at least 24 hours.
Useful Links:
- DFRobot Fermion NH3 Gas Sensor
- Schematics & Dimension
- Characteristic Parameter
- Project: Building an Electronic Nose with MEMS Gas Detection Sensor Breakout Series and Edge Impulse Platform
Package Included:
1 x DFRobot Fermion NH3 Gas Sensor MEMS Ammonia Gas Sensor 1-300ppm Gas Detection Range Sensor For Industrial and Environmental Applications