MQ-2 gas sensor has high sensitity to LPG, Propane and Hydrogen, also could be used to Methane and other combustible steam, smoke, it is with low cost and suitable for different application.
Model No. | MQ-2 | ||
Sensor Type | Semiconductor | ||
Standard Encapsulation | Bakelite (Black Bakelite) | ||
Detection Gas | Combustible gas and smoke | ||
Concentration | 300-10000ppm | ||
Circuit | Loop Voltage | Vc | ≤24V DC |
Heater Voltage | VH | 5.0V±0.2V ACorDC | |
Load Resistance | RL | Adjustable | |
Character | Heater Resistance | RH | 31Ω±3Ω(Room Tem.) |
Heater consumption | PH | ≤900mW | |
Sensing Resistance | Rs | 2KΩ-20KΩ(in 2000ppm C3H8 ) | |
Sensitivity | S | Rs(in air)/Rs(1000ppm isobutane)≥5 | |
Slope | α | ≤0.6(R5000ppm/R3000ppm CH4) | |
Condition | Tem. Humidity | 20℃±2℃; 65%±5%RH | |
Standard test circuit | Vc:5.0V±0.1V; VH: 5.0V±0.1V | ||
Preheat time | Over 48 hours | ||
