MQ-D4 Methane gas sensor
Low power consumption methane sensor with 4pins, it has sensitive materialis SnO2, which with lower conductivity in clean air. The sensor could be used to detect different gases contains Butane, LPG, it is with low cost and suitable for different applications.
Features:
High selectivity
High sensitivity to Methane
Small size
5V rated voltage, low consumption
Fast response and resume
Good stability and long life
Simple drive circuit
Applications:
Widely used for household lpg gas detection and automatic exhaust, living air device.
Key parameters:
Model | MQ-D4 | ||
Type | Semiconductor flat surfaced Gas Sensor | ||
Standard encapsulation | Metal | ||
Target gas | Methane, Natural gas | ||
Detection concentration | 300-10000ppm(Methane, Natural gas) | ||
Standard circuit | Loop voltage | Vc | ≤24V DC |
Heating voltage | VH | 5.0V±0.2V AC or DC | |
Load resistance | RL | Adjustable | |
Standard features of sensor | Heating resistance | RH | 83Ω±7Ω（Room Tem.） |
Heating consumption | PH | ≤300mW | |
Surface resistance | Rs | 2KΩ-20KΩ(in 5000ppm Methane) | |
Sensitivity | S | Rs(in air)/Rs(5000ppm Methane)≥5 | |
Concentration slope | α | ≤0.6(R2000ppm/R3000ppm Methane) | |
Standard condition of test | Temperature, humidity | 20℃±2℃;65%±5%RH | |
Standard testing circuit | Vc:5.0V±0.1V； VH: 5.0V±0.1V | ||
Warm-up time | More than 48 hours | ||
Configuration (Unit:mm, tolerance:±0.2mm) :
angela