WINSEN MQ-4 Methane Gas Sensor Nature Gas Detection Gas Sensor

Name: WINSEN MQ-4 Methane Gas Sensor Nature Gas Detection Gas Sensor
Brand: MicroHello
SKU: MQ-4-0001
Price: 2.68 USD
Availability: InStock

SKU: MQ-4-0001

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$2.68 ~~$11.80~~

• Target Gas: Methane/CH4/ LNG
• Detection range: 300～10000ppm
• Application:Domestic gas leakage alarm, Nature Gas Detection Gas Sensor/ Semiconductor Gas Sensor

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Description

Principle Introduction:
Winsen Electronics, manufacture original and new methane gas sensor, nature gas sensor, LNG gas detection sensor with long lifespan and low price.
Sensitive material of MQ-4 gas sensor is SnO2, which with lower conductivity in clean air. When the target flammable gas exist, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.
MQ-4 gas sensor has high sensitivity to methane, also has anti-interference to alcohol and other gases.

Applications :
It is widely used in domestic gas leakage alarm, industrial flammable gas alarm and portable gas detector.

Technical parameters :

Tips:For more parameter information, please refer to the latest manual provided by salesman.

Model			MQ-4
Sensor Type			Semiconductor
Standard Encapsulation			Bakelite, Metal cap
Target Gas			Methane
Detection range			300～10000ppm(CH4)
Standard Circuit Conditions	Loop Voltage	Vc	≤24V DC
	Heater Voltage	VH	5.0V±0.1V AC or DC
	Load Resistance	RL	Adjustable
Sensor character under standard test conditions	Heater Resistance	RH	26Ω±3Ω(room tem.)
	Heater consumption	PH	≤950mW
	Sensitivity	S	Rs(in air)/Rs(in 5000ppmCH4)≥5
	Output Voltage	Vs	2.5V～4.0V (in 5000ppm CH4)
	Concentration Slope	α	≤0.6(R5000ppm/R1000ppm CH4)
Standard test conditions	Tem. Humidity		20℃±2℃；55%±5%RH
	Standard test circuit		Vc:5.0V±0.1V； VH:5.0V±0.1V
	Preheat time		Over 48 hours