Product Specification

Methane Sensor CH4 Sensor for Air Pollution Detection MQ-D2

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Specification:

MQ-D2 type semiconductor combustible gas sensor mainly monitor smoke and other harmful gases in contaminated areas, such as ammonia, sulfur, and benzene series steam etc; using advanced flat production process, from the heater and micro- Al2O3 forming a metal oxide semiconductor material constituting the ceramic substrate , with the electrode wire leads, encapsulated in a metal tube housing, cap . When detecting the presence of gas, the gas concentration in air is higher, the higher the conductivity sensor; Using a simple circuit that can change the conductivity of the gas is converted to an output signal corresponding to the concentration.

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Character:??????????????????????????????????????????

1. High?sensitivity?to?Methane??????

2. Low power consumption????????????????????????

3. Fast?response?and?resume

4. Good?stability?and?long?life????????????????????????

5. Simple?drive?circuit

6. Small size

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Application:

1. Domestic gas leakage detector

2. Industrial gas detector

3. Portable gas detector

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Technical Parameter:

Gas: Methane Gas
Detection range: 300 to 10000ppm

Characteristic gas: 5000ppm Methane
Sensitivity: R in air / R in typical gas ≥ 5
Load Resistance: 1～50Ω adjustable
Response time: ≤ 30s
Recovery time: ≤ 60s
Heating current: <=80mA
Heating voltage: 5V
Measuring voltage: 5～50V
Operating Conditions Ambient temperature: -20～+55℃
???????????????????????? Humidity: ≤ 95% RH
???????????????????????? Environmental oxygen content: 21%
Storage conditions Temperature: -20～+70℃?

??????????????????????? ???Humidity: ≤ 70% RH

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