MQ-8 Hydrogen Gas Sensor Module
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EGP70.00
MQ-8 Hydrogen Gas Sensor Module
MQ-8 is a Metal oxide semiconductor (MOS) type sensor from the series of MQ gas sensors (MQ-2, MQ-3, MQ-4, and so on). The module is highly sensitive to Hydrogen gas and can be used to detect any leaks or presence of Hydrogen gas in the air.
Features
- High sensitivity to hydrogen gas (H₂).
- Detects hydrogen concentrations ranging from 100 to 10000ppm.
- Provides both analog and digital output signals.
- Fast response and recovery times for timely detection.
- Simple drive circuit for easy implementation.
- Long service life with stable performance.
- Adjustable sensitivity via onboard potentiometer.
- Compact design suitable for various applications.
Specifications
| Parameter | Value |
|---|---|
| Sensor Type | Semiconductor (SnO₂) |
| Target Gas | Hydrogen (H₂) |
| Detection Range | 100–10000ppm |
| Operating Voltage | 5VDC |
| Heater Voltage (VH) | 5.0V±0.1V AC or DC |
| Load Resistance (RL) | Adjustable |
| Heater Resistance (RH) | 29Ω±3Ω (Room Temp) |
| Heater Consumption | ≤900mW |
| Sensitivity (S) | Rs(in air)/Rs(1000ppm H₂) ≥5 |
| Preheat Time | ≥24 hours |
| Operating Temperature | -10°C to 50°C |
| Operating Humidity | ≤95% RH |
PINOUT
| Pin | Function | Description |
|---|---|---|
| VCC | Input Power Supply | Provides the power supply to the sensor (typically 5V). |
| GND | Supply Ground | Ground connection for the sensor module. |
| DO | Digital Output | Provides a digital output signal (high or low) depending on hydrogen gas concentration. |
| AO | Analog Output | Outputs a variable analog voltage that corresponds to the hydrogen gas concentration. |
Applications
- Hydrogen gas leak detectors in residential and industrial settings.
- Safety systems in hydrogen-powered vehicles and fuel cells.
- Industrial process monitoring involving hydrogen gas.
- Environmental monitoring for hydrogen emissions.
- Integration into microcontroller-based projects for hydrogen detection.
Package Contents
- 1x MQ-8 Hydrogen Gas Sensor Module.
