1. Introducción
The Fuers WLAN Water Leak Detector (Model WFSJ01) is designed to provide real-time monitoring for water leaks and drips in your home or office. This device connects to your 2.4 GHz Wi-Fi network and sends instant notifications to your smartphone via the Tuya app, allowing for prompt action to prevent potential water damage. Its robust design and dual detection capabilities make it an essential tool for safeguarding your property.
2. Información de seguridad
- No exponga el dispositivo a temperaturas extremas ni a la luz solar directa.
- Mantenga el dispositivo fuera del alcance de los niños y las mascotas.
- Utilice únicamente el tipo de batería especificado (2 baterías AAA).
- Asegúrese de que la polaridad de la batería sea correcta durante la instalación.
- Deseche las baterías usadas de acuerdo con las normas locales.
- No intente desmontar ni reparar el dispositivo usted mismo. Contacte con el servicio de asistencia si es necesario.
3. Contenido del paquete
- 1 x Fuers WLAN Water Leak Detector (Model WFSJ01)
- 2 pilas AAA
- 1 x Manual de usuario
4. Producto terminadoview
The Fuers WLAN Water Leak Detector features a compact design with advanced sensors for reliable water detection. It operates wirelessly and integrates with the Tuya Smart Life app for remote monitoring and alerts.
Características principales:
- Smart Monitoring & Remote Notifications: Connects via 2.4 GHz Wi-Fi to send real-time alerts to your smartphone.
- Modos de detección dual: Equipped with rear sensors for leak detection and a front probe for small drip detection.
- 100dB Local Alarm: Emits a loud audible alarm upon water detection.
- Clasificación de impermeabilidad IP67: Designed for long-term use in humid environments.
- Material ABS duradero: High-quality construction ensures longevity and resistance to breakage.
- Funciona con pilas: Operates on 2 AAA batteries (included) for flexible placement and continuous protection during power outages.
- Advertencia de batería baja: Sends app notifications when batteries need replacement.
Componentes:
The device consists of a main body housing the electronics, battery compartment, and an audible alarm. It features two types of sensitive probes:
- Sensores traseros: For detecting widespread water leaks.
- Front Probe: Specifically designed for detecting small drips.

Image: The Fuers Water Leak Detector with its battery compartment open, revealing two AAA batteries and illustrating the front and rear sensitive probes.
5. Configuración
5.1 Instalación de la batería
- Gently twist the cover of the device counter-clockwise to open it.
- Confirm the positive (+) and negative (-) poles inside the battery compartment.
- Insert the two AAA batteries, ensuring correct polarity.
- Align the cover and twist clockwise to tighten and secure it.

Image: A four-step visual guide demonstrating how to open the device cover, confirm battery polarity, insert AAA batteries, and securely close the cover.
5.2 App Pairing (Tuya Smart Life)
- Descarga la aplicación "Tuya Smart" o "Smart Life" desde la tienda de aplicaciones de tu teléfono inteligente (iOS o Android).
- Regístrese o inicie sesión en su cuenta.
- Ensure your smartphone is connected to a 2.4 GHz Wi-Fi network. The device does not support 5 GHz Wi-Fi.
- Abra la aplicación y toque el ícono "+" para agregar un nuevo dispositivo.
- Select "Security & Video Surveillance" > "Water Leak Sensor (Wi-Fi)" or search for "Water Leak Sensor".
- Follow the on-screen instructions to put the device into pairing mode (usually involves pressing and holding a button on the device until an indicator light flashes).
- Ingresa la contraseña de tu red Wi-Fi en la aplicación.
- Wait for the device to connect. Once connected, you can rename the device and assign it to a specific room.
6. Instrucciones de funcionamiento
Once set up, the Fuers WLAN Water Leak Detector continuously monitors for water presence. It features two primary detection methods:
- Detección de fugas: The rear sensors detect larger water leaks, triggering a 100dB alarm and sending an immediate app notification.
- Drip Detection: The front probe is designed to detect small drips, ideal for placement under faucets or pipes. This also triggers the alarm and app notification.

Image: A visual representation of the device's ability to detect both small drips and larger leaks, highlighting its versatile sensing capabilities.
Recibir alertas:
When water is detected, the device will:
- Emit a loud 100dB audible alarm.
- Send a real-time push notification to your smartphone via the Tuya Smart Life app.

Image: The water leak detector placed on a wet surface, indicating a leak, while a smartphone displays a 'Water Leakage Alarm' notification from the app.
You can customize notification settings within the Tuya Smart Life app. The app also allows you to view the device's status and battery level.
7. Mantenimiento
7.1 Reemplazo de batería
The device operates on 2 AAA batteries with a standby time of up to two years. The app will send a low battery warning notification to your smartphone when the batteries need replacement. To replace batteries, follow the steps in Section 5.1.

Image: The Fuers Water Leak Detector with its battery compartment open, showing two AAA batteries and a graphical representation of battery life, indicating up to 2 years of standby time.
7.2 Limpieza
Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or immerse the device in water (beyond its intended IP67 rating for detection) as this may damage internal components.
8. Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| El dispositivo no se conecta a Wi-Fi | Incorrect Wi-Fi password; Not a 2.4 GHz network; Device too far from router; Pairing mode not activated. | Verify Wi-Fi password. Ensure router is 2.4 GHz. Move device closer to router. Re-enter pairing mode as per app instructions. |
| No hay notificaciones de aplicaciones | App notifications disabled; Device offline; Low battery. | Check app notification settings. Verify device is online in the app. Replace batteries if low battery warning is present. |
| La alarma no suena | Batería baja; Mal funcionamiento del dispositivo. | Reemplace las baterías. Si el problema persiste, contacte con atención al cliente. |
| Alarmas falsas | Condensation or high humidity; Device placed on a damp superficie. | Ensure placement is on a dry surface. Avoid areas with excessive condensation. |
9. Especificaciones
- Número de modelo: WFSJ01
- Dimensiones: 20 mm (largo) x 50 mm (ancho) x 65 mm (alto)
- Fuente de energía: 2 pilas AAA (incluidas)
- Conectividad inalámbrica: WiFi 2.4 GHz (IEEE 802.11b/g/n)
- Aplicación compatible: Tuya inteligente/vida inteligente
- Volumen de alarma: 100 dB
- Clasificación de impermeabilidad: IP67
- Material: Plástico ABS de alta calidad
- Max Range (Wireless): 20 metros (sin obstáculos)
- Tecnología de sensores: Sensor de contacto
- Tipo de instalación: Floor/Surface Mount

Image: The Fuers Water Leak Detector partially submerged in water, demonstrating its IP67 waterproof and durable construction.
10. Garantía y soporte
This product comes with a standard manufacturer's warranty. For detailed warranty information, please refer to the documentation included with your purchase or contact the retailer. For technical support, troubleshooting assistance, or any inquiries regarding your Fuers WLAN Water Leak Detector, please visit the official Fuers websitio o comuníquese con su departamento de servicio al cliente.
Recursos en línea:
- Aplicación inteligente Tuya: www.tuya.com/app
- Aplicación Smart Life: www.smartlife.com/app