2015NEW KEYESTUDIO MQ-7 Carbon Monoxide Gas Sensor MQ-7
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2015NEW KEYESTUDIO MQ-7 Carbon Monoxide Gas Sensor MQ-7

$4.50
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Form Color Black Model N/A Quantity 1 DX.PCM.Model.AttributeModel.Unit Material FR4 Application Arduino learning Working Voltage DC 3.3V-5 DX.PCM.Model.AttributeModel.Unit English Manual / Spec No Download Link http://www.keyestudio.cc/h-nd-75.html Other Features Specification: Working voltage: DC 3.3V-5V Working current: 20mA Working temperature: 1050 IO Interface: 3 wire interface (-/+/S/) Target gas: carbon monoxide Detectable concentration: 300-10000ppm CO Loop voltage Vc 10V DC Heating voltage VH 5.0V¡À0.2V ACorDC(hight); 1.5V¡À0.1V ACorDC(low) Load resistance RL adjustable Heating resistance RH 31¡À3(Room temperature) Heating power PH 350mW Surface resistance of sensitive material Rs 2K-20K(in100ppmCO) Sensitivity S Rs(in air)/Rs(100ppmCO)5 Concentration slope: 0.6(R300ppm/R100ppm CO) Temperature, humidity: 20¡À265%¡À5%RH Standard test circuit: Vc:5.0V¡À0.1VVH(high): 5.0V¡À0.1VVH(low): 1.5V¡À0.1V Packing List 1 x MQ-7 carbon monoxide gas sensor

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