Ring
✓Price
$85.99
Mengshen 4 Pack Smart WiFi Door Window Sensor Wireless Contact Sensor
★★★★★
$85.99
Quantity
1
Worldwide shipping
Fast tracked delivery
30-day returns
Hassle-free returns
Secure checkout
Safe & protected
Great service
Thousands of happy customers
About this item
- Universal Smart Door Window Sensor: No hub required. Only a 2.4GHz WiFi connection (not compatible with 5G). Simply download the 'Tuya' or 'Smart Life' App to connect it. Stay informed about the safety of your home no matter where you are
- Never Miss an Alert: Instant smartphone notifications when openings exceed 15mm - monitor your property 24/7 from anywhere. The software will record each data, specific to the duration of door opening and closing
- Easy to Installation: Simply use the included adhesive paper for quick, secure attachment—ensure the surface is clean and dry for optimal adhesion. Install anywhere: doors, windows, drawers, filing cabinets or safes in homes, offices, hotels, warehouses
- Smart Battery Management: Powered by 2 AAA batteries (Not included). Get proactive low-battery notification on your phone when the battery is running out
- Expandable Security System: Seamlessly connects with Tuya, Smart Life, Alexa and Google Home ecosystems - control with voice commands or automate your security routines. Alexa and Google can answer your question 'Is the door open or closed?' Pair with other Tuya devices like sirens or floodlights to trigger 100dB alarms when intrusions occur
- Comprehensive Activity Tracking: Check open and close records directly on the app to monitor door and window activity history. Review specific timestamps and duration of each opening and closing event to stay fully informed about access to your property
Product details
Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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