







🔒 Stay one step ahead with security that never sleeps!
This indoor entry sensor detects door and window openings, sending instant alerts and triggering a 100-decibel siren via your eufy HomeBase S280 or S380. With an impressive 2-year battery life and easy peel-and-stick installation, it offers reliable, low-maintenance protection tailored for modern smart homes.
| Battery Description | Lithium |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Voltage | 3 Volts (DC) |
| Control Method | App |
| Noise Level | 100 dB |
| Mounting Type | Door Mount |
| Sensor Technology | Contact Sensor |
| UPC | 848061046427 |
| Manufacturer | Anker |
| Part Number | AK-T89003D3 |
| Item Weight | 2.4 ounces |
| Product Dimensions | 2.91 x 1.1 x 0.87 inches |
| Item model number | AK-T89003D3 |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Size | Entry sensor |
| Item Package Quantity | 1 |
| Included Components | Entry Sensor |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium |
| Description Pile | Lithium |
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