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The MCOHome A8-9 is a Z-Wave enabled multi-sensor that can completely monitor your environment and assist with all of your smart home needs. The 3.5 inch touch-screen display allows you to see the sensor information that is also reported to your Z-Wave gateway. The A8-9 includes temperature, humidity, motion and light level like many sensors, but goes far beyond by also providing particular matter (pollution), carbon dioxide, and volatile organic compound levels as well. Security and safety is further enhanced with a noise sensor and smoke detection providing an amazing NINE different sensors in one package.