Fermion MEMS Gas Detection Sensor Ammonia (NH3)

🧪 Fermion MEMS NH₃ Gas Sensor
🧩 Overview
Compact ammonia (NH₃) gas detection sensor
Based on MEMS (Microelectromechanical Systems) technology
Designed for low-power IoT and environmental monitoring
Compatible with Arduino, ESP32, Raspberry Pi
⚙️ Working Principle
NH₃ gas interacts with MEMS sensing layer
Causes change in sensor resistance/conductivity
Internal circuit converts it into analog voltage output
Microcontroller interprets voltage → gas presence / concentration trend
📊 Key Specifications
🔹 Gas Detected: Ammonia (NH₃)
🔹 Detection Range: 1 – 300 ppm
🔹 Operating Voltage: 3.3V – 5V
🔹 Current Consumption: < 20 mA
🔹 Output Type: Analog voltage
🔹 Operating Temp: -10°C to 50°C
🔹 Humidity Range: 15% – 90% RH
🔹 Size: ~13 × 13 × 2.5 mm
🔹 Lifespan: ≥ 5 years
🧱 Module Components
MEMS NH₃ sensing chip
Signal conditioning circuit
Analog output pin
Compact breakout board
🔄 Features
High sensitivity to ammonia gas
Ultra-low power consumption
Fast response and recovery time
Very small and lightweight
Suitable for portable and embedded systems
🧪 Applications
Cold storage ammonia leak detection ❄️
Aquaculture monitoring 🐟
Industrial safety systems 🏭
Air quality monitoring 🌫️
Odor detection systems 🚻
⚠️ Usage Tips
Remove protective film before use
Preheat sensor (~24 hours if unused for long time)
Avoid:
Silicone vapors
Corrosive gases
Prevent water or condensation exposure
Calibrate for better accuracy
✅ Advantages
Very compact and energy-efficient
Faster than traditional MQ sensors
Easy analog interface
Long operational life
⚠️ Limitations
Provides relative (not absolute) measurements
Not suitable for high-precision industrial use
Sensitive to environmental changes
Requires calibration
🔍 Summary
MEMS-based ammonia gas detection sensor
Detects NH₃ in 1–300 ppm range
Outputs analog signal for processing
Ideal for IoT, monitoring, and experimental projects