The Nest Learning Thermostat is back on sale for $240 in the Amazon Spring Sale

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . Google’s Nest Learning Thermostat is on sale for $240 right now, as part of the Amazon Spring Sale. That’s close to a record low price for the 4th-gen device that was released just last year. This deal is available for multiple colorways, including silver, gold and black. This is a modern thermostat, so that means AI. The device offers suggestions on how to lower energy usage and can automatically adjust settings in the home based on factors like ambient temperature and daily schedules. It ships with a wireless temperature sensor for accurate measurements. This sensor can run for three years before needing a new battery. This model can accommodate six of these sensors, for large properties, but that requires some additional purchases. A three-pack of the sensors typically c ... Read full article.