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🚪🔔 Stay ahead of every open door moment—smart security that just works!
The THIRDREALITY Zigbee Contact Sensor is a compact, wall-mounted door and window monitor compatible with major Zigbee hubs including Echo devices, SmartThings, and Home Assistant. Featuring a 2-year battery life powered by 2 AAA batteries, it supports Alexa routines for automated alerts and actions. The sensor offers hassle-free setup, OTA firmware updates, and an enhanced app experience with battery monitoring and event history, making it a reliable and future-ready addition to any smart home security system.






















| ASIN | B08R9PH4JT |
| Best Sellers Rank | 233,034 in DIY & Tools ( See Top 100 in DIY & Tools ) 195 in Home Security Door & Window Sensors |
| Brand | THIRDREALITY |
| Country Of Origin | China |
| Customer Reviews | 4.3 4.3 out of 5 stars (739) |
| EU Spare Part Availability Duration | 2 Years |
| Included Components | AAA Battery × 2, Door Sensor, Double-sided Tape, Screws |
| Item Dimensions | 50 x 21 x 60 millimetres |
| Item Weight | 2.08 Ounces |
| Manufacturer | Third Reality, Inc |
| Manufacturer Part Number | 3RDS17BZ |
| Maximum Supply Voltage | 1.5 Volts (DC) |
| Measuring Range | Open - Gesloten |
| Model Number | P1DSA2 |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Output Type | Push Button |
| Sensing Distance | 2 Metres |
| Style Name | Door Sensor |
| UPC | 850001595285 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 50 Degrees Celsius |
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