The California-based startup's previous product, the Roost Smart Battery, fits inside your smoke detector and sends you an alert when the alarm sounds. The company also has a standalone smoke detector on the way.
With the Smart Water and Freeze Detector, Roost wants to help your smart home be ready for any potential disaster. With three years of battery life and a humidity sensor built-in with the temperature and water sensor.
Read more: http://www.cnet.com/products/roost-smart-water-and-freeze-detector/