







🔐 Stay ahead of the unexpected—smart security that’s always a step closer.
The Aqara Door and Window Sensor T1 is a compact, wireless contact sensor designed for smart home security and automation. Operating on Zigbee 3.0, it offers a reliable 400-inch connection range to the Aqara Hub (sold separately) and supports voice control via Apple HomeKit and Alexa. With easy adhesive installation and a long-lasting lithium battery included, it delivers instant alerts and seamless automation for doors, windows, drawers, and cabinets with gaps up to 0.86 inch.
| Battery Description | Lithium |
| Number of Batteries | 1 Lithium Metal batteries required. (included) |
| Voltage | 3 Volts (DC) |
| Control Method | App |
| Mounting Type | Adhesive Mount |
| Maximum Range | 400 Inches |
| Sensor Technology | Contact Sensor |
| UPC | 192784001240 |
| Manufacturer | Lumi United Technology Co., Ltd. |
| Part Number | DW-S03D |
| Item Weight | 0.882 ounces |
| Product Dimensions | 0.87 x 0.59 x 1.61 inches |
| Item model number | DW-S03D |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Item Package Quantity | 1 |
| Included Components | Sensor Unit x 1, Magnet x 1, Sticker x 2, Quick Start Guide x 1 |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Metal |
| Description Pile | Lithium |
S**.
Dead on Arrival
The media could not be loaded. I thought I was going to find a zigbee door sensor that was more reliable than the IKEA parasoll but found one even worse. Showed up with a dead battery, but even after replacing the battery I didn’t get more than the brief flash at install. Pairing does not work. Proximity does not work.
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