Cello Stealth Damper 2017-10-08T00:48:22+00:00

Finally, a state of the art forced air damper that does not force you to replace your registers with plastic covers!

The new Cello Stealth Damper™ was designed with the customer in mind. The Cello Stealth Damper™ allows you to balance your duct airflow resulting in improved comfort and energy savings.


1 D Lithium battery included. Expected to last up to 6 years.


Download the Cello app for iOS and Android for standalone configuration


All smart thermostats from Nest, Ecobee, and Honeywell.


Battery operated. Bluetooth Low Energy and Wi-Fi. Standalone or fully automated mode.

Product Information

It magnetically mounts inside any 4, 5 and 6 inch round duct. It is battery powered with an expected battery lifecycle of up to 6 years.

The Cello Stealth Damper™ can operate in standalone mode, or in tandem with smart thermostats from Nest, Ecobee, and Honeywell via the Cello cloud. The standalone mode is controlled from the Cello app via BLE and allows you to manually control the damper and set schedules.

The Cello Stealth Damper will start shipping early December 2017
but you can pre-order it today!