5A-MQ5
1-, Very sensitive especially in low and middle concentration of flammable gases.
2-, Very short respond time and recovery time.
3-, Long life, high stability.
4-, Simple application circuit, low cost.
5-, Widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector alarm.

Model 5A-MQ5
Sensor Type Semiconductor gas sensor
Standard Encapsulation Bakelite, Metal Cap
Target Gas CH4, LPG and flammable gases.
Temperature range Usage:﹣10℃～﹢55℃
Storage:﹣20℃～﹢60℃
Humidity range ≦ 95﹪RH
Detection range 500~10000ppm
Standard Circuit Conditions Loop Voltage Vc 5V~24VDC
Heater Voltage VH 5V±0.2VDC/AC
Load Resistance RL Adjustable (1K-30K)
Heater consumption PH ≦900Mw，(VH=5V)
Sensitivity LS(Rs) α≤0.6 ，RS（3000ppm）/RS（air）
Sensitive resistance RS RS=（VC／VRL－1）*RL
Respond time Tx ≤30S
Revovery time Th ≤60S
Standard test conditions Temp. Humidity 20±2℃，65±5%RH
Standard test circuit VH= VC=5V±0.05VDC; RL=4.7K±1%
Preheat time ≧ 24 hours Calculation method of the sensor power：Ps= VC* VC* RS／(RS+ RL)* (RS+ RL)