Zigbee/WIFI Smart Induction Door Window Sensor ($9.49)

So cheap, it’s practically in beta: $9.49 from Banggood. Package weight: about 41g/1.44oz, Agreement: ZigBe, Package size: about 8.5 * 5.6 * 2.6cm/3.34 * 2.20 * 1.02in, Magnetic control distance: ≥ 15mm, APP: SmartLife/Graffiti, Standby current: ≥ 10uA, Alarm current: ≤ 15mA, Working temperature: – 10 ℃~50 ℃, Material: ABS, Battery: 2 * LR03 (excluding), Operating humidity: ≤ 95% RH.
Updated: 15-07-2025

Banggood

Warehouse in China.
Link: Zigbee/WIFI Smart Induction Door Window Sensor
Price: $9.49

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
	10/20/30/40 New Girls Cute Colorful Waterdrop Shape Hairpins Sweet Hair Clips Kids Barrettes Slid Clip Fashion Hair Accessories	$1.01	–
	100pcs/pack Small Zip Lock Plastic Bag Reclosable Transparent Bag Shoe Bag Vacuum Bag Poly Clear Bags Thickness 0.05mm	$1.03	–
	2 Pieces/set Scary Fish Skeleton Kayak Sticker Canoe Dinghy Marine Boat Car Truck Waterproof Stylish Sticker	$1.19	–
	Simulated Pearl Hair Clips For Women Korean Women Hairpins Girl Geometric Hair Barrettes Fashion Hairgrip Hair Accessories	$1.33	–
	Black Mask Unisex Winter Warm Thickening Half Face Mouth Mask Cotton Cartoon Pattern Anti-Dust Anti- Respirator Black Kpop Mask	$1.88	–
	Film Poco X7 F6 X6 X5 X3 F5 Pro 5G Tempered Glass Poko F7 Ultra Camera Film Poco x7 Pro Screen Protector For Poco F7 Pro Glass	$2.21	–
	Story Dice Board Game Puzzle Telling Story Family/Party/Friends Parents with Bag	$2.52	–
	Reusable Capsule Pod For Delta Q NDIQ7323 Coffee Machine Stainless Steel Refillable Coffee Filters Cup Coffee Accessories	$5.97	–
	Tuya ZigBee/wifi Smart Temperature Humidity Sensor	$6.48	–
	TNCE Tuya Smart Plug WiFi/Zigbee Smart Socket	$6.53	–
	Tuya WiFi Zigbee Smart Mini Switch Power Monitor	$6.61	–
	TNCE Tuya Wifi/Zigbee Smart Socket EU Plug 16/20A Power Monitor	$7.58	–
	16A Tuya Zigbee/WIFI Smart Light Switch	$7.64	–
	16A Zigbee / WiFi Smart Plug Socket With Power Energy Monitor	$8.12	–
	Tuya WiFi/Zigbee Smart Plug 16A Socket	$9.38	–
	QS Zigbee Wifi CP03 Tuya Curtain Switch Module	$12.90	–
	Zigbee/WIFI Natural Gas Sensor	$13.24	–
	Tuya ZigBee/WiFi PIR Motion Sensor	$13.94	–
	SMLIGHT SLZB-06/M/P7 Zigbee 3.0 to Ethernet USB and WiFi Gateway	$36.89	–
	SMLIGHT SLZB-06/M/P7 Zigbee 3.0 to Ethernet USB and WiFi Gateway	$41.37	–
	Zemismart Tuya Zigbee WiFi 3 Phase Energy Meter	$51.70	–

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

Price history and price alert

Not enough data to show price history chart… $7.49 is the only recorded price. It was not cheaper than that since we have saved it in DB.
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