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Sensors
Gas MQ-4 Sensor
PRICE: $3.00    
AVAILABLE.: YES

MQ4 Methane Gas Sensor detects the concentration of methane gas in the air and ouputs its reading as an analog voltage. … The sensor can operate at temperatures from -10 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 […]

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MQ4 Methane Gas Sensor detects the concentration of methane gas in the air and ouputs its reading as an analog voltage. ... The sensor can operate at temperatures from -10 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.