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Breath Sensor MQ316

Summary:

The gas-sensitive material used in the MQ316 odor sensor is a semiconductor material with low conductivity in clean air. When there is a gas to be measured in the environment where the sensor is located, the conductivity of the sensor increases as the concentration of the gas to be measured increases. Use a simple circuit to convert the change in conductivity into an output signal corresponding to the gas concentration .

Feature:

This product has high sensitivity to ethanol, hydrogen sulfide, and methyl mercaptan in a wide concentration range, and has the advantages of long life, low cost, simple driving circuit, etc.

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Other Detector

Formaldehyde detector is an instrument for detecting formaldehyde. Generally, semiconductor sensors and electrochemical sensors are used to realize the rapid semi-quantification of formaldehyde in indoor air on the spot, which is characterized by simple structure, small size, intuitive,easy to carry and use.

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PARAMETER

Specification Product Size

Technical Data Sheet

Model No.			MQ316
Sensor Type			Semiconductor
Standard Encapsulation			Metal
Target Gas			Ethanol, hydrogen sulfide, methyl mercaptan
Detection range			5~ 200ppm ethanol
Standard Circuit Conditions	Loop Voltage	V_C	3.0V±0.1V DC
	Heater Voltage	V_H	0.9V±0.1V AC or DC
	Load Resistance	R_L	Adjustable
Sensor character under standard test conditions	Heater Resistance	R_H	4.0Ω±0.5Ω（room temp.）
	Heater consumption	P_H	≤150mW
	Sensitivity	S	Rs(in air)/Rs(10ppm alcohol)≥2
	Output Voltage	△Vs	1.0~3.0V (in 10ppm C₂H₅OH)
	Concentration Slope	α	≤0.6(R_50ppm/R_10ppm C₂H₅OH )
Standard test conditions	Tem. Humidity		20℃±2℃；50%±10%RH
	Standard test circuit		V_C: 3.0V±0.1V； V_H: 0.9V±0.1V
	Preheat time		Not less than 48 hours

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