







🔒 Secure smarter, live freer — your home’s silent guardian.
The eufy Security Entry Sensor offers a powerful 2-year battery life with 800 days of monitoring, a compact design that fits any door or window frame, and a loud 100-decibel siren that triggers alerts to your smartphone. Easy to install with included mounting options, it requires the eufy Security HomeBase for full functionality, making it an essential, hassle-free addition to your smart home security system.
| 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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