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   "name": "MQ-2 Smoke Gas Sensors detection module",
   "description": "The Grove Gas Sensor (MQ2) module is useful for gas leakage detection (home and industry). It is suitable for detecting H2, LPG, CH4 and CO. Specifications Input Voltage: 5VDC Current: 150mA Output: TTL Digital 0 and 1 ( 0.1 and 5V) Analog signal output: 0.1-0.3 V (related to pollution), the maximum concentration of the voltage is approx. 4V Note: After the sensor is powered, it needs to warm up for about 20 seconds, the measured data is stable, the sensor heating is a normal phenomenon, because the internal heating wire if hot is not normal. Tutorial: Click Here More Information Same Spec Items - SKU A-7403 Manufacturer OEM MPN A-7403 Can be used with -",
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