






🚪🔒 Secure your space, smartly and effortlessly.
The THIRDREALITY Zigbee Contact Sensor 4 Pack offers professional-grade door and window monitoring with universal Zigbee compatibility, 2-year battery life, and seamless integration with Alexa and major smart home hubs. Designed for quick installation and enhanced with customizable Alexa routines and real-time app monitoring, it’s the smart security upgrade every modern home needs.







| Brand | THIRDREALITY | 
| Item dimensions L x W x H | 1.97 x 0.83 x 2.36 inches | 
| Item Weight | 0.29 Kilograms | 
| Style | Door Sensor 4 Pack | 
| Mounting Type | Door Mount | 
| Specific Uses For Product | Contact Sensor | 
| Manufacturer | Third Reality, Inc | 
| Part Number | 3RDS17BZ | 
| Item Weight | 10.2 ounces | 
| Product Dimensions | 1.97 x 0.83 x 2.36 inches | 
| Item model number | 3RDS17BZ | 
| Batteries | 8 AAA batteries required. | 
| Color | White | 
| Power Source | Battery Powered | 
| Item Package Quantity | 1 | 
| Included Components | Door Sensor × 4; AAA Battery × 8; Double-sided Tape × 4; Screw × 8 | 
| Batteries Included? | No | 
| Batteries Required? | No | 
| Battery Cell Type | Alkaline | 
| Description Pile | Alkaline | 
| Average Battery Life | 2 years | 
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