Product Specification

Natural Gas Sensor Methane Sensor CH4 Sensor MQ-D4

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Specification:

MQ-D4 type semiconductor natural gas sensor is mainly used in leak detection, monitoring, alarm device and intelligent gas leak alarm system of natural gas, methane gas, gas, marsh gas etc, it uses 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 gas

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: 200 to 10000ppm

Characteristic gas: 5000ppm Methane gas
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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