{"product_id":"1-10pcs-mq2-mq-2-mq135-mq7-mq3-mq9-air-quality-sensor-hazardous-gas-detection-module-for-arduino-m2-promotionhot-smoke-gas-lpg","title":"1-10pcs MQ2 MQ-2 MQ135 MQ7 MQ3 MQ9 Air Quality Sensor Hazardous Gas Detection Module For Arduino M2 PromotionHot Smoke Gas LPG","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNONE\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFunctions\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eElectronic Module\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaterial\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMetal\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMQ135 MQ-135\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China,Mainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOutput\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSwitching Transducer\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eRange of application\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSwitch And Sensor For Arduino STM\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eTheory\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eHall Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eGas Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eUsage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eGas Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003esemi_Choice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:26px;font-family:default\"\u003eMQ-2smoke gas sensor\r\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:26px;font-family:default\"\u003e\r\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:26px;font-family:default\"\u003eMQ-3the alcohol sensor\r\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:26px;font-family:default\"\u003e\r\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:26px;font-family:default\"\u003eMQ-7carbon monoxide sensor moudle\r\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:26px;font-family:default\"\u003e\r\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:26px;font-family:default\"\u003eMQ-9carbon monoxide flammable gas sensor\r\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:26px;font-family:default\"\u003e\r\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:26px;font-family:default\"\u003eMQ-135air quality sensor\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cspan style=\"background-color:rgb(239, 244, 250);color:rgb(255, 0, 0);font-size:22px;font-family:arial, helvetica, sans-serif\"\u003eNew MQ135 MQ-135 Air Quality Sensor Hazardous Gas Detection Module for Arduino M2 PromotionHot New Arrival\u003cbr\u003eProduct Overview:\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"font-family:arial, helvetica;font-size:13px;line-height:18px;color:rgb(0, 0, 0);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"color:rgb(51, 51, 51);font-size:inherit;font-family:arial, verdana, sans-serif\"\u003eMQ135 gas sensor sensitive material used in the clean air, low conductivity tin oxide (SnO2). When present in the environment pollution gas sensor, conductivity sensor with the increase in air pollution in the gas concentration increases. Use simple circuit can convert the change in conductivity of the gas concentration corresponding to the output signal.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family:arial, helvetica, sans-serif;font-size:13px;line-height:inherit;color:rgb(0, 0, 0);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003eMQ135 ammonia gas sensor, sulfide, benzene vapor high sensitivity, smoke and other harmful monitoring will also be ideal. The sensor can detect a variety of harmful gases, it is a low-cost sensors for a variety of applications.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family:arial, helvetica;font-size:13px;line-height:18px;color:rgb(0, 0, 0);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan\u003e\u003cspan style=\"background-color:rgb(239, 244, 250);color:rgb(255, 0, 0);font-size:22px;font-family:arial, helvetica, sans-serif\"\u003eApplication:\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family:arial, helvetica;font-size:13px;line-height:18px;color:rgb(0, 0, 0);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size:inherit;font-family:arial, helvetica, sans-serif\"\u003e\u003cspan style=\"font-size:20px\"\u003eCan be used for home and factory gas leakage monitoring devices, suitable for liquefied petroleum gas, butane, propane, methane, smoke, etc.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003ch2 style=\"font-family:arial, helvetica, sans-serif;font-size:14px;line-height:30px;color:rgb(38, 65, 118);background-color:rgb(239, 244, 250);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px 0px 0px 10px;padding-bottom:0px;padding-top:0px;padding-left:10px;padding-right:0px;box-sizing:border-box\"\u003e\u003cspan\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003e\u003cspan style=\"color:rgb(255, 0, 0);font-size:inherit\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003eUsing high-quality dual-panel design,with power indicator and TTL signal output instructions.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003eThe switching signal having a DO (TTL) output and analog output AO.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003eTTL output valid signal is low. ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003eAnalog output voltage with the higher concentration of higher voltage\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003eThere are four screw holes for easy positioning.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003eHas a long life and reliable stability\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003eRapid response and recovery characteristic\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003eInput voltage : DC5V Power consumption ( current ): 150mA\u003cbr\u003eDO output : TTL digital 0 and 1 ( 0.1 and 5V)\u003cbr\u003eAO output :0.1-0 .3 V ( relative to pollution ),the maximum concentration of a voltage of about 4V\u003cbr\u003eSpecial note: After the sensor is powered,needs to warm up around 20S,measured data was stable,heat sensor is a normal phenomenon,because the internal heating wire,if hot is not normal .\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003ch2 style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;box-sizing:border-box\"\u003e\u003cspan\u003e\u003cspan style=\"color:rgb(255, 0, 0);font-size:inherit\"\u003e\u003cspan style=\"font-size:inherit;font-family:arial, helvetica, sans-serif\"\u003e\u003cspan style=\"font-size:22px\"\u003eWiring:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003eVCC: positive power supply (5V)\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003eGND: power supply is negative\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv style=\"font-size:inherit;font-weight:inherit;line-height:inherit;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003eDO: TTL switching signal output\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\u003c\/li\u003e\n\u003cli 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