Onvis
Onvis Door Window Contact Sensor CT3
Doors and Windows · Security
HomeKit onlyContactThreadBluetooth
Where to buy
Store searches look up “Onvis Door Window Contact Sensor CT3” at each retailer. Availability and prices vary by region; check that the model you buy says it works with Apple Home or Matter.
In ReReHome
Position and hold for motorized doors and windows, obstruction alerts, and open or closed from contact sensors.
And every other characteristic or Matter attribute it exposes.
Reports to Apple Home
Connectivity
- Thread
- Bluetooth
How it reaches your home
- HomeKit over Thread
- HomeKit over Bluetooth
Identifiers
| Manufacturer | Onvis |
|---|---|
| Model / SKU | CT3 |
Compatibility notes
- Thread-enabled successor to the Bluetooth-only CT2; specs list Thread + Bluetooth LE 5.0 and it works exclusively with Apple Home (onvishome.com, read 2026-10-18).
- Went on sale on Amazon US 2023-01-01 at US$29.99 single / US$45.99 two-pack; needs a HomePod mini/Apple TV Thread border router for Thread (homekitnews.com, 2022-12-29).
- Onvis has not announced a Matter update for the CT3; it remains a HomeKit-only accessory (homekitnews.com, 2022-12-29).
Sources
- https://onvishome.com/products/onvis-thread-enabled-homekit-door-window-contact-sensor-bluetooth-wireless-low-energy-no-hub-required-1-pack
- https://homekitnews.com/2022/12/29/onvis-thread-enabled-contact-sensor-now-available-pre-order/
- https://www.cultofmac.com/808900/thread-enabled-door-and-window-sensor-controls-homekit-automations/
