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Where to buy
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Specs confirmed against the manufacturer. How we check →
ThirdReality
Third Reality Zigbee Door/Window Sensor
$20
On the lower end for compatible contact sensors · $11 to $40 in our catalog
Before you buy
Runs locally through a hub
Good fit if you use SmartThings, Hubitat or Home Assistant.
- Will not work on its own. Needs a compatible hub (extra cost).
Hub requiredZigbee 3.0 device
Needs a hub first, then works with SmartThings, Hubitat, Home Assistant.
Works with a compatible hub.
Once it is on a hub, control it from:
SmartThingsHubitatHome Assistant, via Zigbee2MQTT or ZHA
✓ full support (native, Matter, or a built-in integration).
Specifications
Features
- Battery life
- Up to 2 years (2x AAA)
Connectivity & control
- Connectivity
- Zigbee 3.0
- Hub
- Hub required
- Local control
- Runs locally
- Power
- Battery
Product info
- Brand
- ThirdReality
- Type
- Contact sensor
- Region
- United States, European Union
- Availability
- In production
- Model number
- 3RDS17BZ
What you get at each price
Compatible options in this category, confirmed against the manufacturer. Spend less or more with your eyes open.
Spend less
$18
Aqara Door and Window Sensor
Aqara
Hub required
Runs locally
You are here
$20
Third Reality Zigbee Door/Window Sensor
ThirdReality
Hub required
Runs locally
Spend more
$25
Ecolink Z-Wave Plus Door/Window Sensor
Ecolink
Hub required
