{"id":8051020398772,"title":"6PCS MQ135 Air Quality Sensor with Hazardous Gas Detection Alarm Module Indoor air Monitoring System for Arduino Projects","handle":"6pcs-mq135-air-quality-sensor-with-hazardous-gas-detection-alarm-module-indoor-air-monitoring-system-for-arduino-projects","description":"\u003ch3\u003e6PCS MQ135 Air Quality Sensor with Hazardous Gas Detection Alarm Module Indoor air Monitoring System for Arduino Projects\u003c\/h3\u003e\r\n\u003cp id=\"b\"\u003eIntroduction: MQ-135 air quality sensor belongs to MQ series gas sensor, which\r\nis widely used to detect harmful gases, smoke in fresh air, etc. It can detect\r\nor measure harmful gases such as ammonia, benzene, sulfur, carbon dioxide, and\r\nsmoke. The operating principle is based on the change in resistance of the\r\nsemiconductor gas sensing element. When the gas enters the sensor, it reacts\r\nchemically with the sensitive material on the surface of the gas sensor,\r\nresulting in a change in the resistance value.By measuring the change in the\r\nresistance value, it is possible to infer the magnitude of the concentration\r\nof the polluting gas.\u003c\/p\u003e \r\n\r\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\r\n \u003cul class=\"a\"\u003e\r\n \u003cli\u003eDual-Layer Circuit Design:Operates at DC5V with 150mA current consumption, equipped with visible power indicator and TTL output status light.\u003c\/li\u003e\r\n \u003cli\u003eGas 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).\u003c\/li\u003e\r\n \u003cli\u003eMicrocontroller Interface:TTL digital output provides 0.1V (low level) and 5V (high level) signals, requires 20-second initialization after power-on for stable operation.\u003c\/li\u003e\r\n \u003cli\u003ePhysical Dimensions:Housing measures 1.26\"x0.79\"x0.76\" (32x20x22mm) with integrated electrochemical sensor.\u003c\/li\u003e\r\n \u003cli\u003ePackage Contents:Includes 6pcs MQ-135 modules with pre-installed pins for breadboard\/PCB integration.\u003c\/li\u003e\r\n \u003c\/ul\u003e","published_at":"2026-05-05T18:26:53+10:00","created_at":"2026-05-05T18:26:49+10:00","vendor":"YFUSET","type":"Indoor Air Quality Meters","tags":["industrial_April2026"],"price":9800,"price_min":9800,"price_max":9800,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":44215431692468,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B0DZ2THNRG","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"6PCS MQ135 Air Quality Sensor with Hazardous Gas Detection Alarm Module Indoor air Monitoring System for Arduino Projects","public_title":null,"options":["Default Title"],"price":9800,"weight":45,"compare_at_price":null,"inventory_management":"shopify","barcode":"768365214905","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/auspowers.com\/cdn\/shop\/files\/B0DZ2THNRG.jpg?v=1777995500"],"featured_image":"\/\/auspowers.com\/cdn\/shop\/files\/B0DZ2THNRG.jpg?v=1777995500","options":["Title"],"media":[{"alt":null,"id":32914415354036,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1200,"width":1200,"src":"\/\/auspowers.com\/cdn\/shop\/files\/B0DZ2THNRG.jpg?v=1777995500"},"aspect_ratio":1.0,"height":1200,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/B0DZ2THNRG.jpg?v=1777995500","width":1200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003e6PCS MQ135 Air Quality Sensor with Hazardous Gas Detection Alarm Module Indoor air Monitoring System for Arduino Projects\u003c\/h3\u003e\r\n\u003cp id=\"b\"\u003eIntroduction: MQ-135 air quality sensor belongs to MQ series gas sensor, which\r\nis widely used to detect harmful gases, smoke in fresh air, etc. It can detect\r\nor measure harmful gases such as ammonia, benzene, sulfur, carbon dioxide, and\r\nsmoke. The operating principle is based on the change in resistance of the\r\nsemiconductor gas sensing element. When the gas enters the sensor, it reacts\r\nchemically with the sensitive material on the surface of the gas sensor,\r\nresulting in a change in the resistance value.By measuring the change in the\r\nresistance value, it is possible to infer the magnitude of the concentration\r\nof the polluting gas.\u003c\/p\u003e \r\n\r\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\r\n \u003cul class=\"a\"\u003e\r\n \u003cli\u003eDual-Layer Circuit Design:Operates at DC5V with 150mA current consumption, equipped with visible power indicator and TTL output status light.\u003c\/li\u003e\r\n \u003cli\u003eGas 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).\u003c\/li\u003e\r\n \u003cli\u003eMicrocontroller Interface:TTL digital output provides 0.1V (low level) and 5V (high level) signals, requires 20-second initialization after power-on for stable operation.\u003c\/li\u003e\r\n \u003cli\u003ePhysical Dimensions:Housing measures 1.26\"x0.79\"x0.76\" (32x20x22mm) with integrated electrochemical sensor.\u003c\/li\u003e\r\n \u003cli\u003ePackage Contents:Includes 6pcs MQ-135 modules with pre-installed pins for breadboard\/PCB integration.\u003c\/li\u003e\r\n \u003c\/ul\u003e"}