Flammable Gas Sensor, 300ppm To 10000ppm

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$5.83

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Stock: In Stock
Model: RDDLZ-GS-MQ2
Weight: 1.00
SKU: RDDLZ-GS-MQ2

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Buy a high sensitivity gas sensor to detect flammable gases and smoke from 300ppm to 10000ppm. It can also detect natural gas and other flammable vapors, suitable for different applications in detecting various flammable gases.

Specifications

Model	RDDLZ-MQ-2
Product Type	Semiconductor Gas Sensor
Standard Package	Bakelite, Metal Cap
Detect Gas	Flammable gas, Smoke
Detection Concentration	300~10000ppm C₃H₈
Standard Circuit Conditions	Loop Voltage	V_C	≤24V DC
	Heating Voltage	V_H	5.0V±0.1V AC or DC
	Load Resistance	R_L	Adjustable
Gas Sensor Characteristics Under Standard Test Conditions	Heating Resistor	R_H	29±3Ω (Room Temperature)
	Heating Power Consumption	P_H	≤950mW
	Sensitivity	S	R_S(in air)/R_S (in 2000ppm C₃H₈)≥5
	The Output Voltage	V_S	2.5V~4.0V (in 2000ppm C₃H₈)
	Concentration Slope	α	≤0.6 (R_3000ppm/R_1000ppmC₃H₈)
Standard Test Conditions	Temperature and Humidity		20℃±2℃, 55%±5%RH
	Standard Test Circuit		V_C: 5.0V±0.1V, V_H: 5.0V±0.1V
	Preheat Time		Not Less Than 48h
Oxygen Concentration	21% (Not less than 18%. Oxygen concentration will affect the initial value, sensitivity and repeatability of the sensor. Please consult when using it under low oxygen concentration.)
Life	10 Years

Structural Diagram

Circuit Diagram

Tips: What is a combustible gas sensor?

A combustible gas sensor is a device designed to detect the presence of flammable or combustible gases in the air. These sensors play a crucial role in ensuring safety in various environments where the risk of gas leaks or buildup exists, such as industrial facilities, laboratories, homes, and commercial spaces. The primary function of a combustible gas sensor is to monitor the concentration of gases that can ignite and pose a fire hazard.

These sensors typically employ various technologies to detect the presence of combustible gases, including catalytic bead, infrared, and semiconductor-based sensors. Catalytic bead sensors rely on the combustion of gases on a heated surface, leading to a change in temperature that is then measured. Infrared sensors detect specific wavelengths of light emitted by gases during their absorption or emission processes. Semiconductor sensors utilize changes in electrical conductivity when exposed to combustible gases.

Once a combustible gas sensor detects a hazardous concentration, it triggers an alarm or activates safety measures to mitigate potential risks. Timely detection of combustible gases is crucial for preventing explosions, fires, and other dangerous situations. Combustible gas sensors are integral components of gas detection systems, contributing to the overall safety of individuals and the protection of property and the environment.

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