EVERSECU WD004
EVERSECU Tuya Smart WiFi Door Sensor User Manual
Model: WD004
1. Introduction
The EVERSECU Tuya Smart WiFi Door Sensor is a battery-operated device designed to detect the open or closed status of doors, windows, cabinets, or drawers. It integrates with your home WiFi network and sends real-time notifications to your smartphone via the Tuya Smart Life app. This sensor enhances home security and offers smart automation possibilities when combined with compatible smart home platforms like Amazon Alexa and Google Assistant.
2. Safety Information
- Keep the device away from water and high humidity environments.
- Do not attempt to disassemble or repair the device yourself. Refer to qualified personnel for service.
- Use only the specified battery type (2 x AA batteries).
- Dispose of batteries properly according to local regulations.
- Ensure the installation surface is clean and dry for proper adhesion of the 3M glue.
3. Package Contents
- EVERSECU Tuya Smart WiFi Door Sensor (Main Unit and Magnetic Strip)
- User Manual
- 3M Adhesive Pads
Note: AA batteries are not included and must be purchased separately.
4. Product Overview

Image: Overview of the EVERSECU Tuya Smart WiFi Door Sensor units and a smartphone displaying a notification.

Image: The EVERSECU door sensor highlighting its compatibility with Smart Life, Amazon Alexa, and Google Assistant.
The sensor consists of two main parts: the main unit (larger part with the indicator light and battery compartment) and the magnetic strip (smaller part). When these two parts are separated, the sensor detects an 'open' state; when they are close together, it detects a 'closed' state.
5. Setup
5.1 Battery Installation
- Gently slide open the back cover of the main sensor unit.
- Insert two AA batteries into the battery compartment, ensuring correct polarity (+/-).
- Close the back cover securely.
5.2 App Installation
- Download the 'Smart Life' app from Google Play Store (for Android) or Apple App Store (for iOS).
- Register for a new account or log in if you already have one.
5.3 Pairing with App
- Ensure your smartphone is connected to a 2.4GHz WiFi network. The sensor does not support 5GHz WiFi.
- Open the Smart Life app.
- Tap '+' in the top right corner to add a device.
- Select 'Security & Video Surveillance' then 'Door/Window Sensor (Wi-Fi)'.
- Follow the on-screen instructions to put the sensor into pairing mode (usually involves pressing and holding a button on the sensor until the indicator light blinks rapidly).
- Confirm the indicator is blinking rapidly in the app and enter your WiFi password.
- The app will search for and connect to the device. Once connected, you can rename the sensor.
5.4 Sensor Installation

Image: Examples of sensor installation on windows, doors, and drawers.

Image: Various scenarios for sensor installation, including gates, windows, drawers, and glass doors.
- Choose a clean, dry, and flat surface on your door/window frame and the moving part of the door/window.
- Attach the 3M adhesive pads to the back of both the main unit and the magnetic strip.
- Mount the main unit on the fixed frame and the magnetic strip on the moving part of the door/window.
- Ensure the two components are aligned with the arrows pointing towards each other.
- The distance between the two components should be as close as possible when the door/window is closed, ideally within 1 cm (0.4 inches), and should not exceed 2 cm (0.8 inches) to ensure proper detection.
6. Operating
6.1 Real-time Notifications

Image: Smartphone displaying real-time push notifications from the Smart Life app when the door sensor detects activity.

Image: Detailed view of the Smart Life app interface and phone notification panel for door sensor alerts.
When the door or window is opened or closed, the sensor will immediately push an instant notification to your smartphone through the Smart Life app. This allows you to monitor the status of your entry points remotely.
6.2 Smart Home Integration

Image: The door sensor integrated with Amazon Alexa and Google Assistant for voice control and status inquiry.
The EVERSECU door sensor is compatible with Amazon Alexa and Google Assistant. After linking your Smart Life account to your voice assistant app, you can inquire about the status of your doors/windows using voice commands (e.g., "Alexa, is the front door open?").
6.3 Family Sharing

Image: The Smart Life app's device sharing feature, allowing multiple family members to receive alerts and control the sensor.
You can share access to the sensor's status and notifications with family members through the Smart Life app's device sharing function. This ensures that multiple authorized users can monitor the security of your home.
6.4 Lighting Automation (Smart Scene)

Image: The door sensor triggering lighting automation, where a light turns on when the door is opened.
Within the Smart Life app, you can create smart scenes. For example, you can configure a scene where your smart lights automatically turn on when the door sensor detects that a door has been opened.
7. Maintenance
7.1 Battery Replacement

Image: Feature icons, including a low battery alert icon, indicating the sensor's ability to notify users when batteries are low.
The sensor will automatically push messages through the Smart Life app to remind you when the battery level is low. To replace the batteries, follow the steps in Section 5.1. Ensure you use two new AA alkaline batteries for optimal performance.
7.2 Cleaning
Wipe the sensor gently with a dry, soft cloth. Do not use liquid cleaners or abrasive materials, as they may damage the device.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Sensor not connecting to WiFi | Incorrect WiFi password; Sensor too far from router; 5GHz WiFi network; Router settings. | Ensure correct 2.4GHz WiFi password; Move sensor closer to router; Switch router to 2.4GHz mode during pairing; Check router firewall settings. |
| No notifications received | App notifications disabled; Sensor offline; Battery low; Incorrect installation. | Enable notifications for Smart Life app in phone settings; Check sensor status in app; Replace batteries; Ensure sensor components are within 2cm when closed. |
| Sensor not detecting open/close | Components too far apart; Misalignment. | Re-position components to be closer (within 1cm) and ensure arrows are aligned. |
| Battery drains quickly | Frequent activations; Poor WiFi signal. | Ensure strong WiFi signal; Consider location if it's a high-traffic area. |
9. Specifications
- Model: WD004
- Power Source: 2 x AA Batteries (3 Volts)
- Control Method: App (Tuya Smart Life)
- Mounting Type: Door Mount
- Maximum Detection Range: 19.69 Feet (between sensor and router)
- Product Dimensions: 1.3 x 1.3 x 1.02 inches
- Item Weight: 13.7 ounces
- Compatible Devices: Smartphone (Android, iOS), Amazon Alexa, Google Assistant
- UPC: 778299333672
- Manufacturer: EVERSECU
- Country of Origin: China
10. Warranty and Support
EVERSECU products are designed for reliability and performance. For warranty information and technical support, please refer to the contact details provided with your purchase or visit the official EVERSECU website. Keep your purchase receipt as proof of purchase for warranty claims.
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