
Onvis
Onvis CT2 Smart Contact Sensor
Sensors · Security
HomeKit onlyContactBluetooth
Where to buy
Store searches look up “Onvis CT2 Smart Contact Sensor” at each retailer. Availability and prices vary by region; check that the model you buy says it works with Apple Home or Matter.
From store listings
| Compatibility | Apple Devices |
|---|---|
| Color | White |
| Model | CT2 |
From the Bing Shopping page for “Onvis Wireless Smart Contact Sensor CT2 NEW IN BOX”.
In ReReHome
Readings from eleven sensor types, any of which can trigger an automation.
And every other characteristic or Matter attribute it exposes.
Reports to Apple Home
Connectivity
- Bluetooth LE
How it reaches your home
- HomeKit over Bluetooth LE
Identifiers
| Manufacturer | Onvis |
|---|---|
| Model / SKU | CT2 |
| Model / SKU | Onvis Contact Sensor CT2 |
Reported versions
| Version | Date | Source |
|---|---|---|
| Firmware 1.2.2 | homedevices.app | |
| Firmware 1.2.8 | homedevices.app | |
| Firmware 1.1.5 | homedevices.app |
Compatibility notes
- Original Bluetooth HomeKit contact sensor (with temperature/humidity); superseded by the Thread CT3.
- Reported by HomeKit users in the HomeDevices community catalog (1 record, DE); not on Apple's accessory page.
- Category from the HomeKit category reported by the record.





