John Kestner and David Carr created Twine, a 2.5 inch-square device with on-board temperature and vibration sensors, as well as an expansion connector for other sensors, such as moisture sensors and magnetic switches, all tightly integrated through WiFi with a cloud-based service.

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Sensors that understand everything from temperature, light and moisture to motion, pressure and stress, need to be connected.

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In addition to thermostat and security sensors, Iris will help you monitor carbon monoxide levels, water heaters, pet doors and the moisture levels of your house plants.

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