MQ-7:
nFor home, carbon monoxide detection device environment. Suitable for carbon monoxide and gas detection.
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Module Features:
nDetection of concentration: 10-1000ppmCO
nLoop voltage Vc: <=10V DC
nHeater voltage Vh: 5.0V ±0.2V ACorDC(high)
nLoad resistance: adjustable.
nHeater resistance RH: 31ohm ± 3 ohm(room temperature)
nHeater power consumption PH: <=350mW
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Standard test conditions:
nTemperature: 20 degree ± 2 degree
nHumidity: 65% ± 5% RH
nStandard test circuit: Vc: 5.0V ± 0.1V; Vh(high):5.0V±0.1V
nVh(low):1.5V±0.1V
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n1, The analog output voltage, the higher the concentration the higher the voltage.
n2, The carbon monoxide detection with better sensitivity.
n3, There are four screw holes for easy positioning;
n4, Product Dimensions: 32 (L) * 20 (W) * 22 (H)
n5, With a long service life and reliable stability
n6, Rapid response and recovery characteristics
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Electrical properties:
nInput voltage: DC5V power (current): 150mA
nDO output: TTL digital 0 and 1 (0.1 and 5V)
nAO output :0.1-0 .3 V (relatively clean), the highest concentration of voltage around 4V
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Package Included:
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- 1 x MQ-7 CO Carbon Monoxide Coal Gas Sensor Module
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