Artículo: AMZ-B0DZ2THNRG

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6PCS MQ135 Air Quality Sensor with Hazardous Gas Detection Alarm Module Indoor air Monitoring System for Arduino Projects

Detalles del producto
Disponibilidad
En stock
Peso con empaque
0.20 kg
Devolución
Condición
Nuevo
Producto de
Amazon
Viaja desde
USA

Sobre este producto
  • Introduction: MQ-135 air quality sensor belongs to MQ series gas sensor, which is widely used to detect harmful gases, smoke in fresh air, etc. It can detect or measure harmful gases such as ammonia, benzene, sulfur, carbon dioxide, and smoke. The operating principle is based on the change in resistance of the semiconductor gas sensing element. When the gas enters the sensor, it reacts chemically with the sensitive material on the surface of the gas sensor, resulting in a change in the resistance value.By measuring the change in the resistance value, it is possible to infer the magnitude of the concentration of the polluting gas.
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Dual-Layer Circuit Design:Operates at DC5V with 150mA current consumption, equipped with visible power indicator and TTL output status light. Gas Detection Parameters:Detects ammonia, benzene vapor, sulfur compounds in 10-1000ppm range, analog output voltage increases with gas concentration (0.1-0.3V normal state, reaches 4V at maximum detection). Microcontroller Interface:TTL digital output provides 0.1V (low level) and 5V (high level) signals, requires 20-second initialization after power-on for stable operation. Physical Dimensions:Housing measures 1.26"x0.79"x0.76" (32x20x22mm) with integrated electrochemical sensor. Package Contents:Includes 6pcs MQ-135 modules with pre-installed pins for breadboard/PCB integration.