{"product_id":"tzt-mq-2-mq2-smoke-gas-lpg-butane-hydrogen-gas-sensor-detector-module-for-arduino","title":"TZT MQ-2 MQ2 Smoke Gas LPG Butane Hydrogen Gas Sensor Detector Module For Arduino","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTZT teng\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\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland 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\u003eTheory\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eResistance Sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003evibration sensor\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eUse\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTemperature 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\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e \n \u003ckse:widget data-widget-type=\"customText\" id=\"23071364\" type=\"custom\"\u003e\u003c\/kse:widget\u003e \n\u003c\/div\u003e\n\u003cp style=\"font-size:inherit;font-weight:inherit;line-height:inherit;color:rgb(0, 176, 240);border:0px;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\"\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:24px\"\u003eSmart Electronics 1pcs MQ2 MQ 2 MQ-2 Smoke Liquefied Flammable Methane Gas Sensor Module for Arduino Diy Starter Kit\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-family:arial, helvetica;line-height:18px;color:rgb(0, 0, 0);border:0px;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\"\u003e \n \u003cspan style=\"font-size:18px\"\u003e\u003cspan style=\"color:rgb(12, 12, 12);font-size:inherit\"\u003e\u003cspan style=\"font-size:inherit;font-family:verdana, sans-serif\"\u003eMQ-2 gas sensor sensitive material used in the clean air low conductivity tin oxide (SnO2). When there is the environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases. Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-2 gas sensor high on gas, propane, hydrogen sensitivity of detection of natural gas and other flammable vapors are also very good. This sensor can detect a variety of flammable gas, is a low-cost sensors for a variety of applications.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e \n\u003c\/div\u003e\n\u003cdiv style=\"font-family:arial, helvetica;line-height:18px;color:rgb(0, 0, 0);border:0px;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\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family:arial, helvetica;line-height:18px;color:rgb(0, 0, 0);border:0px;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\"\u003e \n \u003cp style='font-family:\"font-size:inherit;font-weight:inherit;line-height:inherit;border:0px;margin:0px;padding:0px;padding:0px;margin:0px;\"'\u003e\u003cspan style=\"font-size:18px\"\u003eGas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane , propane , methane , smoke , etc.\u003c\/span\u003e\u003c\/p\u003e \n \u003cdiv\u003e \n  \u003cbr\u003e \n \u003c\/div\u003e \n \u003cul\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\u003eUsing high-quality dual-panel design, with power indicator and TTL signal output instructions;\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\u003eThe switching signal having a DO (TTL) output and analog output AO ;\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\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\/p\u003e\u003c\/li\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\u003eAnalog output voltage with the higher concentration of higher voltage.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\u003eA gas, natural gas, city gas , smoke better sensitivity.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\u003eThere are four screw holes for easy positioning ;\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\u003eHas a long life and reliable stability\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\u003eRapid response and recovery characteristic\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e \n \u003c\/ul\u003e \n \u003cp style=\"font-size:inherit;font-weight:inherit;line-height:inherit;border:0px;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\"\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\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\/p\u003e \n \u003cul\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\u003eVCC: positive power supply (5V)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\u003eGND: power supply is negative\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\u003eDO: TTL switching signal output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e \n  \u003cli\u003e\u003cp\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:18px\"\u003eAO: analog signal output\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e \n \u003c\/ul\u003e \n\u003c\/div\u003e\n\u003cp style=\"font-size:20px;font-weight:inherit;line-height:inherit;border:0px;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\"\u003e\u003cspan style=\"font-size:inherit;font-family:arial\"\u003e\u003cspan style=\"color:rgb(7, 15, 240);font-size:inherit\"\u003e\u003cspan style=\"font-size:inherit\"\u003ePackage included:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size:inherit;font-family:arial\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-size:inherit;font-family:arial\"\u003e\u003cspan style=\"color:rgb(255, 0, 0);font-size:inherit\"\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e100% Brand New\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size:inherit;font-weight:inherit;line-height:inherit;color:rgb(255, 0, 0);border:0px;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\"\u003e\u003cspan style='font-size:inherit;font-family:\"\"'\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"font-size:inherit\"\u003e1set x  MQ-2\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family:arial, helvetica, sans-serif;font-size:13px;line-height:16.0952px;border:0px;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\"\u003e\u003cbr\u003e\u003cimg 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