6PCS MQ135 Air Quality Sensor with Hazardous Gas Detection Alarm Module Indoor air Monitoring System for Arduino Projects
Product Description
6PCS MQ135 Air Quality Sensor with Hazardous Gas Detection Alarm Module Indoor air Monitoring System for Arduino Projects
- 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.
Technical Specifications
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