SONOFF DW2-RF 433MHz RF Wireless Door Window Sensor ($9.99)

Smarter than a spreadsheet full of discounts: $9.99 (Banggood). SONOFF DW2-RF 433MHZ RF Wireless Door Window Sensor Detector Door Opening Sensor eWeLink App Smart Home Security – DW2-RF.
Updated: 08-08-2025

Banggood

Warehouse in China.
Link: SONOFF DW2-RF 433MHz RF Wireless Door Window Sensor
Price: $9.99

Additional Banggood coupons:
1. First page
2. Second page

Aliexpress

There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price: Open

Image	Product (link)	Price	Coupons
	SONOFF DW2-RF – 433MHz RF Wireless Door/Window Sensor Smart Home Security Alarm Work With SONOFF RF433MHz Bridge EweLink IFTTT	$4.98	–
	SONOFF DW2-RF 433MHz Wireless Door/Window Sensor Smart Home Security Alarm Sensor Smart Scene Works With SONOFF RF BridgeR2	$7.37	–
	1-10PCS SONOFF DW2-RF 433MHz Wireless Door Window Sensor Works with SONOFF RF Bridge EV1527 Smart Scene Home Secuirty Devices	$7.37	–
	Itead SONOFF RF Bridge 433MHz Wireless Wifi Remote Control PIR3 Motion Sensor DW2 Door Window Sensor for Smart Home Automation	$7.37	–
	SONOFF DW2 WiFi Wireless Security Door Window Sensor Alarm Detector 433MHZ RF Smart Scene EWeLink App Remote Smart Home Security	$7.68	–
	SONOFF DW2 RF 433Mhz Wireless Door Window Sensor App Notification Alerts For Smart Home Security Alarm Works SONOFF RF Bridge	$11.61	–

Click here to search by yourself. Here are coupons that you can use.

Price history and price alert

Here is price history (for all/most countries) for SONOFF DW2-RF 433MHz RF Wireless Door Window Sensor. The lowest price was: $9.99.
Price records source(s): Banggood
Click on image to enlarge.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).
Price Alert