CAPTEUR GAZ MQ4 (METHANE)

SKU: SLY3304 Category: GAZ SENSOR

Product Description

MQ-4 MQ4 Natural Coal Methane Gas Detector Co Methane Detector

MQ-4 Sensor Description:

Sensitive material MQ-4 gas sensor is used to clean the air in the lower conductivity of tin dioxide (SnO2). When there is the environment in which the combustible gas sensor, the conductivity sensor with an increasing concentration of combustible gases in the air increases. Using a simple circuit to convert the change in conductivity of the corresponding gas concentration to the output signal. MQ-4 high sensitivity gas sensor for methane, propane, butane and has good sensitivity. This sensor can detect a variety of combustible gases, especially natural gas, is a low cost sensor for a variety of applications.

Module Features:

1, using high-quality double-panel design, with the power indicator and TTL signal output instructions;

2, the switching signal having a DO output (TTL) and an analog output AO.

3, TTL output valid signal is low. (Low level signal when the output light can be directly connected to the microcontroller or relay module)

4, the higher the voltage, the higher the concentration of the analog output voltage.

5, for methane, natural gas has good detection sensitivity.

6, there are four screw holes for easy positioning;

7 product dimensions: 32 (L) * 20 (W) * 22 (H)

8, has a long service life and reliable stability

9, fast response and recovery characteristics

Electrical properties:

Input voltage: DC5V power consumption (current): 150mA
Make 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