KEEN 4X10 SmartVents

KEEN 4X10 SmartVents. As Seen On Shark Tank! In Good Condition, Work Perfect (Just Upgraded Our AC Unit So No Longer Need Them). Embedded temperature and pressure sensors to monitor the performance of your HVAC system. Interchangeable faceplate is easy to clean and paintable. Works with Nest, ecobee, Lowe’s Iris, and SmartThings. I Have 4 - 4X10 SmartVents Available! Asking $80 Each Or $300 For All Four. Will Be Packaged With Extreme Care For Shipping. X-Posted P.S. All Items Are Shipped Out Same Or Next Day Except On Weekends Everything Will Be Shipped Monday.