2015NEW KEYESTUDIO MQ-7 Carbon Monoxide Gas Sensor MQ-7
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|Working Voltage||DC 3.3V-5V|
|English Manual / Spec||No|
|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±0.2V ACorDC(hight); 1.5V±0.1V ACorDC(low) Load resistance RL adjustable Heating resistance RH 31±3(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±265%±5%RH Standard test circuit: Vc:5.0V±0.1VVH(high): 5.0V±0.1VVH(low): 1.5V±0.1V|
|Dimensions & Weight|
|Dimensions||2.05 in x 0.83 in x 0.51 in (5.2 cm x 2.1 cm x 1.3 cm)|
|Weight||0.21 oz (6 g)|
|1 x MQ-7 carbon monoxide gas sensor|
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|Quantity||3+ units||5+ units||10+ units|
|Rate||US$4.20 shipped||US$4.19 shipped||US$4.17 shipped|
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