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🚪🔔 Stay ahead of every open door—smart security that just works!
The THIRDREALITY Zigbee Contact Sensor 4 Pack offers reliable door and window monitoring with broad Zigbee hub compatibility, including Echo devices with built-in hubs. Designed for quick, tool-free installation, these sensors deliver up to 2 years of battery life and integrate seamlessly with Alexa routines for personalized smart home automation. The companion app provides real-time battery and activity tracking, ensuring you never miss a beat in home security.
| ASIN | B09XCZJMC5 |
| Best Sellers Rank | #94,238 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #140 in Home Security Door & Window Sensors |
| Brand | THIRDREALITY |
| Brand Name | THIRDREALITY |
| Customer Reviews | 4.3 out of 5 stars 1,065 Reviews |
| Included Components | Door Sensor × 4; AAA Battery × 8; Double-sided Tape × 4; Screw × 8 |
| Item Dimensions | 50 x 21 x 60 millimeters |
| Item Weight | 0.29 Kilograms |
| Item dimensions L x W x H | 50 x 21 x 60 millimeters |
| Item weight | 0.29 Kilograms |
| Manufacturer | Third Reality, Inc |
| Material | Plastic |
| Material Type | Plastic |
| Measuring Range | Binary: Open - Closed |
| Measuring range | Binary: Open - Closed |
| Model | 3RDS17BZ |
| Mounting Type | Magnetmontage |
| Output Type | Digital |
| Part Number | 3RDS17BZ |
| Smart Home Compatibility | Smart Home Compatible |
| Specific Uses For Product | Contact Sensor |
| Style | Door Sensor 4 Pack |
| Style Name | Door Sensor 4 Pack |
| Unit Count | 4.0 Count |
A**M
very good
working fine
D**R
Deursensor Ring
Het item voldoet volledig aan de eisen
D**Y
Great little sensors
I’ve been using these door/window contact sensors around the house for a few months now, and they’ve been great. I set them up to turn on cupboard lights when doors open, and to automatically turn on the hallway lights when the front door is opened at night. Once paired with my Zigbee setup (I’m running them through Home Assistant), the automations fire reliably and consistently, no lag or missed triggers. Installation was straightforward: the sensors are slim, powered by standard AAA batteries with up to ~2 years of life, and can be mounted with either the included adhesive tape or screws. Once connected they’ve stayed paired without any problems, and using regular batteries (rather than coin cells) makes swapping them out simple when needed. Overall these contact sensors have worked exactly as I’d hoped. They’re reliable, great value, easy to integrate into automations, and now a core part of my smart-home setup.
C**R
Funktioniert wie vorgesehen
Nutze die Sensoren in Verbindung mit ioBroker/NodeRed. Funktionieren einwandfrei, unauffällige Optik.
B**O
Muy buen sensor
Funciona de lujo, raros son los que pueden tener tal espacio de detección. Además, usando pilas normales, fácil cambiarlas y recargarlas. La única pega es que usando pilas normal, pues es un poco más grande, claro.
D**L
Top
Einrichtung mit homeassistant hat problemlos funktioniert. Verbindung zu Router ohne Probleme. Somit Aussage einer 2 Sterne Rezension dass kein mesh möglich ist schlicht falsch. Sendet Zustand permanent nicht nur wie Sensoren anderer hersteller beim Öffnen oder schließen. AAA Batterie kann leicht gewechselt werden. Einziger Nachteil ist dass er etwas größer ist wegen der Batterien aber das ist aufgrund dass Daten alle paar Minuten gesendet werden verständlich. Hab noch nichts besseres gefunden und schon viele Sensoren ausprobiert.
Trustpilot
5 days ago
1 week ago