SONOFF DW2 WIFI Wireless Door/ Window Sensor

GW-A-Sonoff DW2 WIFI
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  • Keep linkage with SONOFF smart devices to create various smart scene
  • Turn on/off your light with an action
  • Notify you when the door/window is opened
  • Check the opening and closing status of door/window on APP
  • Battery-level display and low-battery reminder
  • Allow sharing the sensor with your family to monitor and control of your home
  • No gateway required
  • Bluetooth low energy pairing
  • Support to check history record on APP
  • Low-power Wi-Fi transmission for more lasting work time
  • Peel and stick installation, quick to use
R105 incl. VAT
R91 excl. VAT

Volume discounts

Quantity Price You Save
5 R101 4%
10 R99 6%

IN STOCK at GeeWiz!
If ordered before 4PM:
DELIVERED next business day (main centres)
or 3-5 days (regional areas or large items)
COLLECTION from GeeWiz available SAME DAY
Also available for in-store purchase during business hours!



Have no idea whether burglars break into your home in your absence? Have you ever imagined that your home lights up at once when you open the door? Or wanna your bed-room light turns off automatically once you walk into the living-room? Any of your ideas will be a reality with the SONOFF DW2-Wi-Fi wireless door/window sensor. DW2-Wi-Fi comes in two pieces, the transmitter fits onto the door or window and the magnetic switch attaches to the frame. It can help secure your door or window to let you know whether your home is safe wherever you are. The sensor will trigger an notification to your smartphone via the E-Welink app to remind you of an intruder when the door or window is opened. Connect SONOFF wireless IP camera and you can view who the intruder is on the sensor page of the APP. Whatever your door or window is opened or closed, you can check the real-time opening and closing status on the eWeLink APP. Real-time battery level display and low-battery reminder ensure you get clear know how long the sensor can run and when you need to replace batteries. With simple peel and stick installation, it is easy to fit in door frames and window sills.

*The sensor can work for up to 3 months if the door/window is opened or closed three times a day.


  • Battery Model: AAA 1.5V
  • Working Voltage: DC3V (2 x 1.5V battery, Not included)
  • Quiescent current: ≤ 40 μA
  • Wi-Fi: IEEE 802.11 b 2.4GHZ
  • Material: PC V0
GW-A-Sonoff DW2 WIFI

If you have any further questions, please feel free to use the form below to ask:

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By Adriaan N. on  29 Jan. 2021 (SONOFF DW2 WIFI Wireless Door/ Window Sensor) :

Very good product but range

Very good product but range not that good.

By Charls D. on  21 Dec. 2020 (SONOFF DW2 WIFI Wireless Door/ Window Sensor) :

Device works as promised.

Initially struggled to pair them till I realized that I had limited the number of devices I am allowed to connect to my router. Once I increased that allowing my router to allow more devices to connect to it, It was easy to pair. The response time is quick when it detects a change in status. I am currently connecting it to Home Assistant which makes it so much easier to maintain and manage.

By MARCIO L. on  22 Oct. 2020 (SONOFF DW2 WIFI Wireless Door/ Window Sensor) :

Limited functionality on the app

Limited functionality on the app otherwise it does work

By Fritz B. on  14 Oct. 2020 (SONOFF DW2 WIFI Wireless Door/ Window Sensor) :

These sensors did not work

These sensors did not work well for me. They are difficult to pair initially and then when connected they loose connection easily. Thus most opening and closing of doors did not register. Geewiz assisted me in the process and refunded my money with no problems. Will buy from Geewiz again because of their professional customer service.

By Neil A. on  12 Oct. 2020 (SONOFF DW2 WIFI Wireless Door/ Window Sensor) :

Device shows promise - the

Device shows promise - the component with the magnet in it is a bit weak and so I replaced that section with a stronger magnet.

There is no Google Home integration yet so you have to rely on the ewelink app - and the integration into IFTTT is limited as well.

Lastly the battery power monitor in the app will show the batteries as low after a few days when they are not - just remove them and reinsert them again and the power indicator goes to full again.

But once you are over these niggles then it works as advertised - needs to mature a bit in terms of software and also third party integration.

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