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Alcohol Gas Sensor MQ-3
Description: This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It has a high sensitivity and fast response time. Sensor provides an analog resistive output based on alcohol concentration. The drive circuit is very simple, all it needs is one resistor. A simple interface could be a 0-3.3V ADC.
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$4.50 junetrading.com |
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junetrading.com
$4.50
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MQ-2 Smoke LPG i-butane Propane Methane Alcohol Hydrogen Petroleum Gas Sensor
For home or factory gas leakage monitoring devices, suitable for liquefied petroleum gas, butane, propane, methane, ethanol, hydrogen, smoke and other monitoring devices.
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$7.19 sourcingmap.com |
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sourcingmap.com
$7.19
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Flammable Gas & Smoke Sensor MQ-2
This flammable gas and smoke sensor detects the concentrations of combustible gas in the air and ouputs its reading as an analog voltage. The sensor can measure concentrations of flammable gas of 300 to 10,000 ppm.The sensor can operate at temperatures from -20 to 50°C and consumes less than 150 mA at 5 V. Connecting five volts across the heating (H) pins keeps the sensor hot enough to function correctly. Connecting five volts at either the A or B pins causes the sensor to emit an analog voltage...
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$3.95 soliddepot.com |
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soliddepot.com
$3.95
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5PCS xDIY tool Carbon Monoxide & Flammable Gas Sensor MQ-9
TECHNICAL DATA MQ-9 GAS SENSORFEATURES * High sensitivity to carbon monoxide and CH4，LPG. * Stable and long life APPLICATION They are used in gas detecting equipment for carbon monoxide and CH4，LPG in family and industry or car. SPECIFICATIONS A. Standard work condition Symbol Parameter name technical condition Remark Vc circuit voltage 5V±0.1 AC or DC VH (H) Heating voltage (high) 5V±0.1 AC or DC VH (L) Heating voltage (low) 1.4V±0.1 AC or DC RL Load resistance Can adjust RH Heating resistance ...
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$37.99 hoyasource.com |
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hoyasource.com
$37.99
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