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Home > Electrical & Electronics > Sensor > Pressure Sensor > co Gas Sensor for Home co Alarm

co Gas Sensor for Home co Alarm

US$ 1 - 2 MOQ: 1 Piece

Key Specifications

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Place of Origin:

Shandong, China

Brand Name:

Model Number:

Contact Supplier Request Quote Chat Now

Jining Hengwang Mining Machinery Co., Ltd.

Payment & Shipping

Payment Methods:

Port of Shipment:

qngdao or shanghai port

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Place of Origin Shandong, China

Brand Name hw

Model Number MQ

Usage Gas Sensor

Theory Inductance Sensor

Output Digital Sensor

Specifications

1. Domestic gas leakage detector,
2. Industrial CO detector,
3. Portable gas detector.

MQ series gas sensors

1. Features

*Good sensitivity to Combustible gas in wide range

* High sensitivity to Natural gas

* Long life and low cost

* Simple drive circuit

Application:

* Domestic gas leakage detector

* Industrial Combustible gas detector

* Portable gas detector

2. Applications

Sensitive material of MQ-4 gas sensor is SnO_2,which with lower conductivity in clean air. When the target combustible gas exist, the sensor’s conductivity is more higher along with the gas concentration rising.

The sensor could be used to detect different combustible gas, especially Methane; it is with low cost and suitable for different application.

Product Parameter:

Model No.			MQ-4
Sensor Type			Semiconductor
Standard Encapsulation			Bakelite (Black Bakelite)
Detection Gas			Natural gas/ Methane
Concentration			300-10000ppm
Circuit	Loop Voltage	V_c	≤24V DC
	Heater Voltage	V_H	5.0V±0.2V ACorDC
	Load Resistance	R_L	Adjustable
Character	Heater Resistance	R_H	31Ω±3Ω(Room Tem.)
	Heater consumption	P_H	≤900mW
	Sensing Resistance	R_s	2KΩ-20KΩ(in 5000ppm CH₄ )
	Sensitivity	S	Rs(in air)/Rs(5000ppm CH₄)≥5
	Slope	α	≤0.6(R_5000ppm/R_3000ppmCH₄)
Condition	Tem. Humidity		20°C±2°C;65%±5%RH
	Standard test circuit		Vc:5.0V±0.1V; V_H: 5.0V±0.1V
	Preheat time		Over 48 hours