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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%
30+ click to email

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 Morne M. on  12 Oct. 2021 (SONOFF DW2 WIFI Wireless Door/ Window Sensor) :

Works well as a complimentary safety check

Installing this sensor with an automation/scene allows us to check when any doors have been opened that we may not be aware of. It's a basic sensor but it does what is needed for a battery powered device.

By Hermane D. on  04 Oct. 2021 (SONOFF DW2 WIFI Wireless Door/ Window Sensor) :

WiFi wireless door sensor

A very good price and product was easy to setup. However the connection to WiFi gets lost sometimes and open and close of the sensor is delayed in sending notifications. Otherwise it works and am happy with the product. Excellent service from Geewiz as usual.

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

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