Tuya WiFi/Zigbee Door Window Contact Sensor – Smart Home Alarm

Tuya WiFi / Zigbee Door & Window Contact Sensor – Smart Home Security Alarm

Keep your home, office, or business protected 24/7 with this compact Tuya Smart door and window contact sensor. Whether you're at work, on vacation, or just in another room, receive instant push notifications the moment a door, window, drawer, cabinet, or mailbox is opened or closed. Compatible with the Smart Life / Tuya Smart app, Amazon Alexa, and Google Assistant, this sensor makes smart home security effortless and affordable.

Made in Mainland China.

⚠️ Important Notes Before You Buy

• Batteries not included. Requires 2× LR03 / AAA 1.5V alkaline batteries (sold separately).
• For indoor use only. This device is not waterproof.
• WiFi Version: Supports 2.4 GHz WiFi only. No hub required.
• Zigbee Version: Requires a compatible Zigbee Hub. Ideal for full home automation (e.g., trigger lights on open/close).
• The WiFi version does not support light-linking automations; the Zigbee version does.

Key Features

• 📲 Instant Push Notifications – Get alerted on your smartphone the moment a door or window is opened or closed.
• 🚨 Alarm Alerts – Triggered alerts notify you when someone opens your door or window unexpectedly.
• 📋 Event History Logging – Review open/close records and battery level anytime in the app.
• 👨‍👩‍👧 Family Device Sharing – Share sensor access with family members via "Home Management" in the app so everyone stays informed.
• 🔋 Low Battery Reminder – Automatic low-battery alerts so you're never caught off guard.
• 🔊 Works with Alexa & Google Assistant – Ask "Alexa, is my front door open?" and get a real-time answer.
• 📡 Remote Monitoring Anywhere – Monitor door/window status from anywhere via 2G, 3G, 4G, or 5G mobile data.
• 🛡️ 24/7 Protection – Continuous real-time detection, 7 days a week.
• 🏠 Versatile Installation – Doors, windows, drawers, mailboxes, garages, cabinets – any open/close surface indoors.
• 🔧 No-Tools, Self-Adhesive Setup – Strong adhesive tape included; no screws or drilling needed.
• ⚡ Long Battery Life – Rated for up to 6,000 trigger events. AAA batteries are available everywhere.
• ✅ CE, FCC & RoHS Certified – Meets international safety and environmental standards.

Technical Specifications

What's in the Box

• 1× Main Sensor Body
• 1× Small Magnet Body
• 1× Adhesive Tape Kit
• 1× English User Manual
• Batteries NOT included

How to Install

1. Attach the adhesive tape to the back of both sensor bodies.
2. Mount the main body on the door/window frame and the small body on the door/window itself.
3. Keep both parts as close together as possible — a gap of less than 10 mm is recommended.
4. Download the Smart Life or Tuya Smart app, pair the device, and you're ready!

Where to Use It

This smart contact sensor works great on: front doors, back doors, windows, sliding doors, garage doors, drawers, cabinets, mailboxes, and more — anywhere with an open/close motion, indoors or in a dry protected area.

Want to expand your smart home security setup? Check out these related products:
Tuya WiFi Smart Relay Switch – Works with Alexa & Google Home
Tuya WiFi Smart Automation Module – 16A Relay Breaker

For more information on home security best practices, visit the CDC or learn about smart home safety at NIST.

Learn more about smart home device safety and cybersecurity guidelines from the Cybersecurity & Infrastructure Security Agency (CISA).

Frequently Asked Questions

Q: Does the Tuya WiFi door sensor require a hub?

A: The WiFi version does NOT require a hub — it connects directly to your 2.4 GHz WiFi router. The Zigbee version DOES require a compatible Zigbee hub for full functionality and automation features like triggering smart lights.

Q: Can I use this door sensor on 5 GHz WiFi?

A: No. The WiFi version only supports 2.4 GHz WiFi networks. Make sure your router has 2.4 GHz enabled. If your router combines both bands under one name (SSID), try splitting them and connecting to the 2.4 GHz band specifically.

Q: Can I share this sensor with my family members?

A: Yes! You can share the sensor through the Smart Life / Tuya Smart app using the "Home Management" feature under the "Me" tab. You can also create a virtual home and invite family or friends to join so everyone gets alerts.

Q: What batteries does this contact sensor use?

A: It uses 2× AAA (LR03) 1.5V alkaline batteries, which are NOT included in the package. These are standard batteries available at any grocery, convenience, or hardware store. The sensor supports up to 6,000 trigger events on a single set of batteries and will alert you when the battery is running low.

Q: Can I remotely monitor my door sensor when I'm away from home?

A: Absolutely. As long as your smartphone has an internet connection (WiFi, 4G, 5G, etc.) and the sensor remains connected to your home WiFi, you can monitor open/close status and receive push notifications from anywhere in the world via the Tuya Smart or Smart Life app.

Q: Is this contact sensor waterproof or suitable for outdoor use?

A: No — this sensor is not waterproof and is designed for indoor use only. Do not install it in locations where it may be exposed to rain, moisture, or condensation.

Q: How do I connect this sensor to Alexa or Google Assistant?

A: First, configure your sensor in the Smart Life or Tuya Smart app. Then go to Me → Third Party Services in the app to link your account to Alexa or Google Home using the Skill/Action feature. Once linked, you can ask voice commands like "Alexa, is my front door open?"