Gas Sensor MQ-2 Gas/Smoke Detector
Gas Sensor MQ-2 Gas/Smoke Detector
Gas Sensor MQ-2 Gas/Smoke Detector
Gas Sensor MQ-2 Gas/Smoke Detector
Gas Sensor MQ-2 Gas/Smoke Detector

Gas Sensor MQ-2 Gas/Smoke Detector

Preço normal $4.99 $0.99 Em promoção

Description

Gas Sensor Module suitable for sensing combustible gas, Smoke, Alcohol, Propane, Hydrogen, Methane and Carbon dioxide concentrations in the air.

  • Includes two LED's to indicate power and gas alarm trigger
  • Adjustable Gas level trigger can be used to fine tune gas sensitivity
  • When gas exceeds trigger level TTL signal (D0) set HIGH
  • Use the analog ping (A0) to continuously monitor gas levels
  • There are four screw holes for easy installation

Perfect for use with to be used with and Arduino or with our Flex Radio module.

Wireless Gas Sensor

Here is a prototype set-up picture of the module connected to the Flex radio module.

 

wireless gas sensor diagram

Specification

  • Product dimensions: 32 x 20 x 15 (L x W x H)
  • Chip: LM393, ZYMQ-2 gas sensors
  • Working voltage: DC 5V
  • Detection of gas: combustible gases, fumes
  • Detectable concentration: 300-10000ppm (flammable gas)


Electrical properties

  • Input voltage: DC5V
  • Power consumption (current): 150mA
  • DO output: TTL digital 0 and 1 (0.1 and 5V)
  • AO output: 0.1 - 0.3V (relative to pollution), the maximum concentration of a voltage of about 4V
  • After the sensor is powered there is a 20 second warm up period before the sensor stabilizes, which is normal

Pinouts

  1. CC: positive power supply (5V)
  2. GND: power supply is negative
  3. DO: TTL switching signal output
  4. AO: analog signal output