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Tags: MQ Sensors, MQ-9, Carbon Monoxide Sensor
SpecificationsProduct Model：MQ-9Product Type：Semiconduct-gassensitive elementGas Detected：Carbon monoxide，Combustible gasDetectable Concentration：10-1000ppmCO, 100-10000PPM gasInstructions;DO switching signal(TTL) output and AO analog signal outputTTL output valid signal is low. (When the output low signal light is on, it can be directly connected microcontroller or relay module)Analog output voltage:the higher the concentration,the higher the voltageHave better sensitivity to carbon monoxide detectorFour screw holes,easy positioningProduct Dimensions: 32 (L) * 20 (W) * 22 (H)Long life and stabilityQuick response and resumeElectrical Performance:Input voltage: DC5VPower (current): 150mADO output: TTL digital 0 and 1 (0.1 and 5V)AO Output: 0.1-0.3V (relatively clean), the highest concentration voltage is about 4VSpecial Note: When the sensor is powered, it needs to be warmed up about 20S, so the measured data becomes stable, the heat sensor is a normal phenomenon, because its inside is with an electric wire, if not, unnomal.Package Include:1x MQ9 Module
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