EWeLink SONOFF DW2 WiFi Smart Magnetic Door/Window Sensor


81 sold in last 12 hours

Type: Smart Wifi Door Window Sensor
Material: PC.
Safety class: V0 (flame-retardant).
Color: white.
Static current: <=40uA.
Detecting distance: >15mm.
Wi-Fi frequency: 2.4 GHz.
Wi-Fi standard: IEEE802.11b/g/n.
App: eWeLink (Android, iOS).
Operating voltage: DC 3V (2x 1.5V AAA battery, – batteries are NOT included).
Operating temperature: -10°C~+40°C.
Operating humidity: 5%-95%RH (non-condensing).
Mounting: on the door/window (3M adhesive).
Distance between devices: <5mm.
Detector: 70x31x19 mm.
Magnet: 42x14x16 mm
Weight: 28g.

  •  Delivery & Return


    1. We ship your order worldwide. 2. All orders are shipped with a tracking number. 3. Orders are processed and prepared to be shipped within 2-5 business days. Including quality checks, packing, paperwork, etc. Delivery times may take 3-14 (business days) from the time of purchase to shipping your order worldwide unless it is specified. 3-5 business days delivery time for Expedite shipping(DHL/FedEx/UPS etc) 7-14 business days delivery time for Standard Shipping(EMS/YunExpress etc) Please note that there will be substantial differences in the time of delivery, depending on your country of delivery. During sale periods and promotions the delivery time may be longer than normal.


    1. For whatever reason, if you are not satisfied with your received within 3 days and the product is still in brand new condition and with its original packaging, you can return it to us (need to send back all parts) for a partial refund, which will cover the price of the item minus the shipping fees. You will be responsible for paying the return shipping fees. 2. To start a return, you can contact us. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. 3. Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed. Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.


    Give us a shout if you have any other questions and/or concerns. Email: [email protected] Phone: (+01)-662-300-6268
  Estimated Delivery: Wednesday, Jul 17 – Saturday, Jul 20
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1. This product is a smart door/window sensor to help you monitor the status of your doors or windows. Set sensor settings using the free mobile APP eWeLink (Android, IOS).
2 No gateway required. The sensor is paired with the APP via Bluetooth and is controlled on the APP via Wi-Fi.
3. It can sense the open or closed status of a door or window by closing and detaching the sensor from the magnet.
4. The dual-sensor design allows for greater installation flexibility and adaptability.
5. Suitable for windows and doors of various models, both hinged and sliding.
6. Tool-free installation: adopts 3M adhesive on the bottom of the sensor without damaging the surface. Made of PC flame retardant V0 plastic.
7. Suitable for homes, villas, factories, computer rooms, shops, hotels, office buildings, banks, and many other places to monitor for possible intrusion.
8. This device can be combined with various other products to complement smart home scenarios, such as turning on a light when the door is opened, or a video camera, etc.


1. Just cover the devices, not including others.
2. Due to the problem with the computer monitor, there will be a certain color difference, please understand!
3. OEM/ODM are Welcome! we can Customize the design and print your logo.

Weight0.2 kg
Dimensions7 × 3 × 2 cm

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