{"product_id":"b0fn42dtmk","title":"MQ-7 Carbon Monoxide CO Sensor Module, 5V AO + DO Output (2 Pcs)","description":"\u003cdiv\u003e\n\u003ch1\u003eAbout This\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eMQ-7 module for carbon monoxide co: SnO2 sensing element heated inside a metal mesh cap\u003c\/li\u003e\n\u003cli\u003eAnalog output AO rises with gas concentration; digital output DO switches at a level you set\u003c\/li\u003e\n\u003cli\u003e5V DC supply, 4-pin 2.54 mm header (VCC \/ GND \/ DO \/ AO), power and signal LEDs\u003c\/li\u003e\n\u003cli\u003eOnboard LM393 comparator and threshold potentiometer, so DO can drive a buzzer or LED with no extra code\u003c\/li\u003e\n\u003cli\u003eTwo modules per pack; needs warm-up and your own calibration - a prototyping module, not a certified detector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"MERICDA","offers":[{"title":"Default Title","offer_id":68352326140093,"sku":"SPH-B0FN42DTMK","price":12.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/9344\/9661\/files\/31Qioc-H_9L._AC_SL1500.jpg?v=1794675215","url":"https:\/\/smarthomevaluehub.com\/products\/b0fn42dtmk","provider":"SmartHomeValueHub","version":"1.0","type":"link"}