








đ Secure smarter, live freer with Thread-enabled HomeKit sensing.
The Onvis Thread-Enabled HomeKit Door Window Contact Sensor is a compact, wireless device designed exclusively for iOS users. It leverages Thread technology for instant alerts and seamless integration with Apple HomeKit, enabling smart automations like lighting control. Powered by a long-lasting CR2450 battery, it offers up to one year of standby time. The sensor prioritizes privacy with no cloud dependency and provides a 30-day activity log accessible via the ONVIS app. Ideal for enhancing home security with modern, low-energy technology.






| Number of Batteries | 1 CR2 batteries required. (included) |
| Voltage | 3 Volts |
| Control Method | Voice |
| Noise Level | 75 Decibels |
| Mounting Type | Door Mount |
| Sensor Technology | Contact Sensor |
| Size | 2 |
| Manufacturer | Onvis |
| Part Number | CT3--2 |
| Item Weight | 2.39 ounces |
| Product Dimensions | 1.18 x 1.81 x 0.59 inches |
| Item model number | CT3-N |
| Batteries | 1 CR2 batteries required. (included) |
| Style | modern |
| Included Components | Pads |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Metal |
| Description Pile | Lithium |
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