DFRobot Fermion MEMS Smoke Gas Sensor (10–1000 ppm) - Analog Voltage Output

Name: DFRobot Fermion MEMS Smoke Gas Sensor (10–1000 ppm) - Analog Voltage Output
Brand: DFRobot
SKU: SENS-2988
Price: 599.00 INR
Availability: OutOfStock

₹599.00 (Inclusive of all taxes)

Out of Stock

The DFRobot Fermion MEMS Smoke Gas Sensor is a compact, low-power module designed for qualitative smoke and ethanol (EtOH) detection from 10 to 1000 ppm. It provides an analog voltage output compatible with 3.3V or 5V microcontroller systems like Arduino, ESP32, and Raspberry Pi for early warning and air quality monitoring applications.

Features

Advanced MEMS technology enables a compact 13x13x2.5 mm footprint and low power consumption (<20mA).
Qualitatively detects smoke and ethanol (EtOH) gas concentrations within a 10–1000 ppm range.
Provides an analog voltage output signal for easy integration with ADC inputs on most microcontrollers.
Features rapid response and recovery times with a sensitivity of R0/Rs ≥ 3 in 200ppm EtOH.
Designed for a long operational lifespan of ≥5 years in typical air environments.

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Description

This sensor utilizes a microelectromechanical system (MEMS) gas sensing element, which provides significant advantages in size, power efficiency, and thermal management. The MEMS structure minimizes heat generation, resulting in a short preheating time and stable operation from -10°C to 60°C within 15-90% RH (non-condensing) environments.

The module outputs an analog voltage signal proportional to the detected gas concentration, allowing for straightforward threshold-based alarming or qualitative trend monitoring when connected to a microcontroller’s analog-to-digital converter (ADC). Its primary sensing material reacts to smoke and ethanol vapors, making it suitable for applications where early detection of combustion byproducts is critical.

Key Features

Ultra-compact MEMS-based sensor design measuring only 13 x 13 x 2.5 mm.
Low operating current below 20 mA, ideal for battery-powered or energy-conscious projects.
Analog voltage output for direct interface with 3.3V or 5V logic ADCs on Arduino, ESP32, or Raspberry Pi.
Engineered for high sensitivity and fast response/recovery to gas presence changes.
Robust construction with a specified operational lifespan of five years or more in air.
Wide operating temperature range from -10°C to +60°C for versatile deployment.
Pre-soldered 2.54mm pitch header pins included for rapid prototyping and integration.

Applications

Early-stage smoke detection in prototype fire alarm systems or smart home sensors.
Air quality monitoring for ethanol vapor or combustion byproducts in workshops or kitchens.
Integration into portable environmental data loggers for qualitative smoke level tracking.
Educational projects demonstrating MEMS sensor technology and analog gas sensing principles.

Technical Specifications

Operating Voltage	3.3V to 5V DC
Detection Gases	Ethanol (EtOH), Smoke
Detection Range	10–1000 ppm (qualitative)
Output Signal	Analog Voltage
Sensitivity (R0/Rs in 200ppm EtOH)	≥ 3
Operating Current	< 20 mA
Operating Temperature	-10°C to +60°C
Operating Humidity	15% to 90% RH (non-condensing)
Lifespan	≥ 5 years (in air)
Dimensions (L x W x H)	13 mm x 13 mm x 2.5 mm
Approx. Weight	1 g

Frequently Asked Questions

What is the operating voltage range for this MEMS smoke sensor?

The module operates from a 3.3V to 5V DC power supply. This wide range ensures compatibility with most common microcontroller platforms like Arduino (5V) and ESP32/STM32 (3.3V) without requiring a level shifter for the power line.

How do I interface this sensor with an Arduino or Raspberry Pi?

Connect the module's VCC and GND to your board's power and ground. The analog output (AO) pin should be connected to an analog input (ADC) pin on your microcontroller. You can then read the voltage value to monitor relative gas concentration changes. The included header pins facilitate easy breadboard or perfboard connection.

Can this sensor provide a precise ppm concentration reading?

No, this sensor is designed for qualitative detection and relative concentration measurement, not for precise quantitative ppm analysis. The analog output indicates a relative change in resistance upon gas exposure. It is best used for threshold-based alarming or monitoring trends in smoke or ethanol vapor levels.

What gases does this sensor detect, and what is its lifespan?

It primarily detects smoke and ethanol (EtOH) vapors within a 10 to 1000 ppm range. The MEMS sensor element is rated for a lifespan of five years or more under normal operating conditions in clean air. Prolonged exposure to high concentrations of corrosive gases or contaminants can reduce its operational life.

Are there any special handling or usage precautions?

Yes. Avoid exposure to high concentrations of corrosive gases (H2S, SOx, Cl2), alkalis, silicone vapors, or water/condensation. Do not use in safety-critical systems. For long-term storage, a 24-hour preheating period is recommended before use to stabilize the sensor. Remove any protective film on the sensing element before applying power.