The Cello Stealth Damper System (CSDS) is a new addition to the Cello Connected Home product family.

The CSDS is a new and unique method of controlling air flow for buildings and dwellings conditioned by forced air HVAC. The CSDS damper magnetically mounts to the duct boot under the grille. The CSDS product is battery powered with a lifecycle of up to 10 years. Different batteries can be used. The battery pack is mounted separately. The CSDS is fully wireless with dual support for Bluetooth Low Energy (BLE) and Wi-Fi. Room temperature is measured using an infrared (IR) thermometer, mounted on top of the grille, and connected to the CSDS damper controller, which is embedded in the damper enclosure. The IR sensor is optional and is only required for auto balancing mode.