{"product_id":"mq-135-air-quality-gas-sensor-module","title":"MQ-135 Air Quality Gas Sensor Module for Arduino (CO2, Smoke, NH3)","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe MQ-135 is an easy-to-use gas sensor that detects a wide range of harmful gases in the air, making it ideal for air-quality monitors and safety projects. It senses ammonia (NH3), carbon dioxide (CO2), benzene, smoke, and other pollutants, giving both analog and digital output.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eConnect it to an Arduino, ESP32, or Raspberry Pi to build indoor air-quality monitors, pollution-sensing IoT devices, and smart-home safety alerts.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eKey features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDetects CO2, ammonia, benzene, smoke and other harmful gases\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBoth analog and digital output with adjustable sensitivity\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWorks with Arduino, ESP32 and Raspberry Pi\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eOn-board potentiometer to set the detection threshold\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eOperating voltage 5V — simple 4-pin connection\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":51575418913046,"sku":"SNX-1006","price":145.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/7122\/7158\/files\/Screenshot2026-07-20at12.19.34AM.png?v=1784486991","url":"https:\/\/sensornexa.in\/products\/mq-135-air-quality-gas-sensor-module","provider":"SENSORNEXA","version":"1.0","type":"link"}