High Accuracy MQ-4 Methane Gas Sensor Analog & Digital Dual Output with Enclosure PH2.0 for Arduino ESP32 Microbit Raspberry Pi

High Accuracy MQ-4 Methane Gas Sensor Analog & Digital Dual Output with Enclosure PH2.0 for Arduino ESP32 Microbit Raspberry Pi

MQ4 with case
$31.32
Sale price  $31.32 Regular price  $0.00
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High Accuracy MQ-4 Methane Gas Sensor Analog & Digital Dual Output with Enclosure PH2.0 for Arduino ESP32 Microbit Raspberry Pi
High Accuracy MQ-4 Methane Gas Sensor Analog & Digital Dual Output with Enclosure PH2.0 for Arduino ESP32 Microbit Raspberry Pi
$31.32
Sale price  $31.32 Regular price  $0.00
Color
Description

SPECIFICATIONS

Brand Name: NullLab

Choice: yes

High-concerned chemical: none

Origin: Mainland China

is_customized: Yes

Overview

The gas sensing material used in MQ-4 natural gas sensors is tin dioxide (SnO2) with low conductivity in clean air. When there is combustible gas in the environment where the sensor is located, the conductivity of the sensor increases with the increase of combustible gas concentration in the air. The change in conductivity can be converted into an output signal corresponding to the gas concentration using a simple circuit. The MQ-4 natural gas detection sensor has high sensitivity to methane and good sensitivity to propane and butane. This sensor can detect various gases, especially natural gas, and is a low-cost sensor suitable for multiple applications.

Schematic diagram

Module parameters

Pin name

description

G

GND

V

VCC

A

analog signal pin

D

digital signal pin

  • Supply voltage: 3V3/5V

  • Connection method: 4PIN anti reverse DuPont wire

  • Module size: 38.4 x 22.4 mm

  • Installation method: M4 screws compatible with Lego socket for fixation


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