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Black i USB 3.0 4 Port Hub Otto DIY Kit for Interactive Robot compatible with Arduino The camera has the same The camera has the same specifications as the standard camera module but has a black circuit board so it can be told apart from the standard green camera board Alcohol Vapors Operating Voltage 5V DC Output Type Analog (AO) + Digital (DO) with adjustable threshold Onboard Comparator LM393 with potentiometer for sensitivity adjustment Detection Range 25 500 ppm (varies by target gas) Preheat Time ~20 seconds for stable readings Digital Output Indicator LED indicator for threshold trigger Power Indicator Onboard power LED Mounting 4 mounting holes for easy installation Interface Pins VCC
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