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SensorsNew
Wi-Fi Door & Window Sensor, App Alert
Wi-Fi contact sensor, 28 g, app alerts. No hub - a 2.4 GHz router is enough.
Unbranded (OEM), manufacturer not traceable · MPN ZW861
No hub requiredNot tested by us yet
SKU LR-SNS-DWW1
$20.99
Minimum order: 5 units
QuantityLine total $104.95
Volume pricing
- 10+ units$18.99each
- 25+ units$17.99each
- 50+ units$15.99each
Add 5 more — $18.99 each
- Made to order - ships in 7-10 business days
- Free US shipping over $150
- Pay by bank transfer — we confirm manually within 1 business day
- Connects straight to a 2.4 GHz Wi-Fi router; there is no separate hub in the chain.
- Pushes open and closed events to the phone app, and works with Google Home scenes.
- 28 g for the sensor itself, 32 g packed - light enough to hold on a painted frame with the supplied pad.
- Supplier rates standby draw at 45 uA and alarm draw at 130 mA; expect years, not months, from one cell.
- Rated -10 to 50 C. Not for a freezer, not for an outdoor gate.
Details
A Wi-Fi contact sensor for the door or window you want to hear about. It talks to a 2.4 GHz router directly, so there is no gateway to buy, and no second app to install beyond the one that owns the device.
Standby current is rated at 45 uA and alarm current at 130 mA, which is what makes a coin-cell device practical: it only draws real current when the gap opens. The supplier gives no battery life figure, so we do not quote one.
The sensor weighs 28 g and is packed at 32 g in a 7.5 x 4.5 x 3 cm box, so a hundred units is a small parcel. Working range is -10 to 50 C - fine indoors and in a garage, not rated for a freezer or an exterior gate.
Specifications
- Alarm current
- 130 mA
- Environment
- -10 to 50 C
- Hub
- None - connects to a 2.4 GHz Wi-Fi router
- Model
- ZW861
- Mount
- Adhesive
- Radio
- Wi-Fi 2.4 GHz
- Standby current
- 45 uA
- Weight
- 28 g (32 g packed)
- Protocols
- Wi-Fi
In the box
- 1x Wi-Fi contact sensor
- 1x Magnet half
- 1x Adhesive pad set
- Note: the cell is a consumable; the supplier does not state its size on the specification table
Compatibility
Each line below is one combination: this device, that hub, that firmware — with the date it was checked on the right. For ecosystems not listed here, we make no claim.
Editor’s note: The supplier's brand field reads TUYA, which is the platform the device is built on rather than the manufacturer, so this listing carries no manufacturer brand and no MPN claim beyond the supplier part number ZW861. No certificate number was obtained; the page makes no certification claim. Detail cards are our own drawings from the specification table.
Product images
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Customer reviews
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