Fermion: MEMS Volatile Organic Compounds VOC Gas Sensor employs state-of-the-art microelectromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2.5mm), low power consumption (＜20mA), minimal heat generation, short preheating time, and swift response recovery. The sensor can qualitatively measure VOC gas concentration and is suitable for indoor air quality detection, fresh air system, air purifier and other application scenarios.

The MEMS series currently encompasses 11 different types of gas sensors (HCHO, CO, CH4, VOC, NH3, H2S, EtOH, Smoke, Odor, H2, NO2), which can be combined as per specific requirements.

Please note: This sensor is capable of only qualitative measurements. For quantitative measurements, kindly consider purchasing the Gravity: Factory Calibrated Electrochemical Gas Sensor Series.

Figure: Wiring Diagram of Fermion: MEMS VOC sensor and Arduino UNO

Precautions for use

• Kindly remove the protective film before usage.
  
• 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).
• Avoid exposure to high concentrations of corrosive gases (such as H2S, SOX, Cl2, HCl, etc.).
• Prevent contamination from alkalis, alkali metal salts, and halogens.
• Refrain from prolonged exposure to extreme environments (such as high temperatures, high humidity, high pollution).
• Avoid contact with water, condensation, and freezing.
• Minimize excessive vibration, impact, and dropping.
• Please refrain from employing this module in systems that involve personal safety concerns.
• For extended periods of non-usage, it is advisable to preheat the module for at least 24 hours.

Features:

• Compact size, measuring only 13*13*2.5mm
• Low power consumption, operating current ＜20mA
• High sensitivity and rapid response recovery
• Advanced MEMS technology

Specifications:

• Gas detected: ethanol, formaldehyde, toluene, etc
• Detection range: 1-500ppm
• Operating voltage: 3.3-5V
• Operating current: ＜20mA
• Output signal: Analog voltage
• Sensitivity: R0(in air)/Rs(in 150ppm ethanol) ≥ 3
• Operating temperature: -10-50℃
• Operating humidity: 15-90%RH (non-condensing)
• Lifespan: ≥5 years (in air)
• Dimension：13×13 x 2.5mm/0.0.51×0.51x0.1"

Applications:

• Environmental monitoring: identify the sources and levels of benzene in the ambient air
• Indoor air quality: measure the concentration of formaldehyde in the indoor air
• Industrial safety: detect any leaks or spills of tetrachloroethylene
• Fire detection: detect the early signs of fire and smoke by sensing the changes in the composition and concentration of VOCs in the air.
• Health applications: measure the amount of acetone in the breath and provide feedback or guidance for diabetes management.

Documentation:

• Product wiki

Package Includes:

• 1 x Fermion: MEMS VOC Sensor (breakout)
• 1 x 2.54mm pitch header pin