MQ-137 Ammonia Gas Detection Sensor
The MQ-137 Ammonia Gas Detection Sensor is a value-for-money gas sensors designed for everyday users. It features Shipping Weight: 0.005 kg and Shipping Dimensions: 4 × 3 × 3 cm.
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About This Product
The MQ-137 Ammonia Gas Detection Sensor is a value-for-money gas sensors designed for everyday users. It delivers reliable performance at an accessible price.
Key Specifications
- Shipping Weight: 0.005 kg
- Shipping Dimensions: 4 × 3 × 3 cm
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The MQ-137 Ammonia Gas Sensor is a reliable and cost-effective semiconductor sensor designed for detecting ammonia (NH₃) gas in various environments. It uses SnO₂ (tin dioxide) as the sensing material, which exhibits low conductivity in clean air and increases conductivity when exposed to ammonia. This change allows easy detection and measurement through a simple circuit. The sensor offers high sensitivity to NH₃ and can also detect organic amines like trimethylamine and cholamine. With a wide detection range of 5–500 ppm, it is suitable for both domestic and industrial applications. Its long lifespan, stable performance, and simple drive circuit make it ideal for gas leakage alarms and portable detection systems. Proper preheating and calibration ensure accurate and consistent performance over time.
Features:
- High sensitivity to ammonia (NH₃) gas
- Detects organic amines (trimethylamine, cholamine)
- Wide detection range (5–500 ppm)
- Long operational lifespan
- Low-cost sensing solution
- Simple drive circuit integration
- Fast response to gas concentration changes
- Suitable for portable and fixed systems
Specifications:
- Model: MQ-137
- Sensor Type: Semiconductor
- Target Gas: Ammonia (NH₃)
- Detection Range: 5–500 ppm
- Heater Voltage: 5.0V ±0.1V
- Loop Voltage: ≤24V DC
- Heater Resistance: 29Ω ±3Ω
- Heater Consumption: ≤900mW
- Weight: 4 g
Package Includes:
1 x MQ-137 Ammonia Gas Detection Sensor
