DESCRIPTION

Protect your home with a Tuya Smart WiFi Door Sensor. Get instant alerts when doors or windows open. No hub required. Works with Alexa & Google Home.

Upgrade your home security with the Tuya Smart WiFi Door & Window Sensor, a simple yet powerful way to monitor doors and windows in real time.

Receive instant notifications on your phone whenever a door or window opens or closes — whether you’re at home, at work, or travelling. This smart sensor connects directly to your WiFi, meaning no hub or gateway is required.

Designed for modern smart homes, it works seamlessly with the Smart Life / Tuya app and integrates with Amazon Alexa and Google Assistant for hands-free control and automation.

Perfect for home security, offices, rentals, shops, and garages.

KEY FEATURES & BENEFITS

Instant Phone Alerts
Get notified immediately when doors or windows open or close.

No Hub Required
Connects directly to your 2.4GHz WiFi network.

Smart App Control
Monitor activity and history anytime using the Smart Life / Tuya app.

Low Battery Reminder
Automatic alerts when battery power is running low.

Activity History
View detailed open/close records directly in the app.

Smart Automation Ready
Trigger lights, alarms, or routines when a door opens.

Easy Installation
Peel-and-stick adhesive mount — no tools or wiring needed.

SPECIFICATIONS

• Product Type: Smart WiFi Door / Window Sensor

• Model: MC400D

• Connectivity:

  • WiFi 2.4GHz

  • Bluetooth (pairing only)

• App Support: Smart Life / Tuya Smart

• Voice Assistants:

  • Amazon Alexa

  • Google Assistant

• Notification Type: App push alerts

• Power Supply: Battery powered

• Battery Monitoring: Yes

• Material: ABS Plastic

• Installation: Adhesive mount

• Certifications: CE, FCC, RoHS

• High-Concern Chemicals: None

WHAT’S IN THE BOX

• 1 × Smart WiFi Door Sensor (Main Unit)

• 1 × Magnetic Contact Sensor

• 1 × User Manual

IMPORTANT NOTES (TRUST & COMPLIANCE)

• Works with 2.4GHz WiFi only (not compatible with 5GHz networks)

• Bluetooth is used only for initial setup, not standalone operation

• Battery inclusion may vary by supplier batch

IDEAL USE CASES

Home & apartment security
Front & back doors
Windows
Offices & shops
Cabinets & drawers
Rental properties