MQ-136 Hydrogen Sulfide (H₂S) Gas Detection Sensor - SnO₂ Semiconductor
The MQ-136 is a semiconductor-based gas sensor module designed for detecting Hydrogen Sulfide (H₂S) concentrations from 1 to 200 ppm. It operates on a standard 5V heater voltage and provides a simple analog interface, making it compatible with common microcontrollers like Arduino, Raspberry Pi, and industrial PLCs for air quality monitoring and safety systems.
Features
- Semiconductor SnO₂ sensing element for Hydrogen Sulfide (H₂S) detection.
- Wide detection range from 1 to 200 ppm H₂S concentration.
- Standard 5.0V ±0.1V heater voltage (AC or DC) for operation.
- Simple analog output interface compatible with ADC modules.
- Durable bakelite and metal cap encapsulation for stable performance.
Out of stock
The MQ-136 sensor utilizes a tin dioxide (SnO₂) semiconductor sensing element. When exposed to Hydrogen Sulfide gas, the sensor’s conductivity increases proportionally to the gas concentration, allowing for straightforward signal conditioning via a simple voltage divider circuit. This analog output can be read by most microcontrollers’ ADC inputs.
Designed for reliable operation in varied environments, the sensor features a robust bakelite body with a metal cap housing the sensing element. It requires a preheating period upon power-up to reach its optimal operating temperature and ensure stable, accurate readings. Its construction and sensing principle make it a practical choice for cost-effective gas detection solutions.
Additional Information
| Weight | 0.005 kg |
|---|---|
| Dimensions | 3 × 3 × 2 cm |
