1. Introducción y másview
This manual provides detailed instructions for the installation, operation, and maintenance of your SadoTech Wireless Doorbell System, Model B00J4FHOB0. This system is designed for versatile use in various environments, including homes, apartments, businesses, and classrooms, offering a reliable and convenient way to receive alerts.
The system features a wireless transmitter button and two plug-in chime receivers, allowing for flexible placement and customizable alerts. Key features include a long operating range, multiple chime options, adjustable volume, and an LED flash for visual notification.

Image 1.1: SadoTech Wireless Doorbell System components.
2. Contenido del paquete
Verifique que todos los artículos enumerados a continuación estén incluidos en su paquete:
- 1 x Wireless Transmitter Button
- 2 x Plug-In Chime Receivers
- 1 x A23 Battery (pre-installed in transmitter, may require tab removal)
- 1 x cinta adhesiva de doble cara
- 2 x Anclas
- 2 x Tornillos
- 1 x Manual de usuario (este documento)

Image 2.1: All-in-One Doorbell Kit contents and features.
3. Configuración e instalación
3.1. Transmitter Button Installation
The wireless transmitter button can be installed using either the provided double-sided adhesive tape or screws and anchors. Ensure the installation surface is clean and dry for optimal adhesion or secure mounting.
Método 1: Cinta adhesiva
- Remove the protective tab from the A23 battery inside the transmitter to activate it.
- Clean the desired installation area on your door frame or wall thoroughly.
- Peel off one side of the double-sided adhesive tape and firmly attach it to the back of the transmitter button.
- Retire el otro lado de la cinta adhesiva y presione el transmisor firmemente sobre la superficie limpia durante al menos 30 segundos.
Method 2: Screws and Anchors (Recommended for permanent installation)
- Remove the back cover of the transmitter button.
- Use the pre-drilled holes on the back plate as a template to mark the screw positions on your wall or door frame.
- Drill pilot holes at the marked positions. Insert the plastic anchors into the pilot holes.
- Align the transmitter's back plate with the anchors and secure it with the provided screws.
- Snap the front cover back onto the transmitter.

Image 3.1: Simple setup steps for the SadoTech doorbell.
3.2. Receiver Chime Installation
The chime receivers are plug-in units. Simply insert them into any standard electrical outlet where you desire to hear the doorbell chime. For optimal coverage, place receivers in central locations or areas where the chime needs to be clearly audible.

Image 3.2: Suggested placement of receivers for wide coverage.
3.3. Emparejamiento del transmisor y el receptor
Your SadoTech doorbell system typically comes pre-paired. If re-pairing is necessary or if you are adding new components, follow these steps:
- Conecte el receptor a una toma eléctrica.
- Press and hold the volume button on the side of the receiver until the LED light on the receiver starts flashing (approximately 5 seconds).
- While the receiver's LED is flashing, press the transmitter button once. The receiver will chime, and its LED will stop flashing, indicating successful pairing.
- Test the pairing by pressing the transmitter button. The receiver should chime.
Video 3.3: SadoTech Wireless Doorbell - Setup Installation. This video demonstrates the process of setting up and pairing the wireless doorbell components.
4. Instrucciones de funcionamiento
4.1. Cambio de campanas
Your SadoTech doorbell offers over 50 different chime melodies. To change the chime, press the 'Sound' button located on the side of the receiver. Each press will cycle through the available melodies. Once you hear a melody you like, stop pressing the button, and the receiver will save your selection.

Image 4.1: Over 50 chimes available for selection.
4.2. Ajuste del volumen
The receiver has 4 adjustable volume levels. To adjust the volume, press the 'Volume' button on the side of the receiver. Each press will cycle through the volume levels from lowest to highest. Select the desired volume level for your environment.

Image 4.2: Personalize your doorbell with adjustable volume and chimes.
4.3. LED Flash Notification
Both the transmitter button and the receiver units feature an LED flash. When the transmitter button is pressed, its LED will illuminate. Simultaneously, the receiver's LED will flash along with the chosen chime, providing a visual alert, which is particularly useful for individuals with hearing impairments or in noisy environments.

Image 4.3: Visual and audio alerts for comprehensive notification.
5. Mantenimiento
5.1. Reemplazo de la batería del transmisor
The wireless transmitter button is powered by an A23 battery, which typically lasts up to 3 years. When the transmitter's performance declines or it stops working, it may be time to replace the battery.
- Abra con cuidado el transmisor casing, usually by prying it open from a small notch on the side or bottom.
- Retire la batería vieja A23.
- Insert a new A23 12V Alkaline battery, ensuring correct polarity.
- Cerrar el transmisor casing de forma segura.
Video 5.1: SadoTech Doorbell Model CXR (Transmitter Button) - Setup Installation. This video demonstrates the setup and battery installation for the transmitter button.
6. Solución de problemas
- El timbre no suena:
Check if the transmitter battery is active (remove tab) or needs replacement. Ensure receivers are plugged in and powered. Re-pair the transmitter and receiver as described in Section 3.3. - Rango limitado:
Ensure there are no major metal obstructions between the transmitter and receiver. The stated range is up to 1000 feet in open air; walls and other structures can reduce this. Consider relocating receivers. - La configuración se restablece después de apagartage:
The receivers have a built-in memory, but in rare cases of power fluctuations, settings might reset to default. Simply re-select your preferred chime and volume settings. - El adhesivo no se adhiere:
Ensure the installation surface was thoroughly cleaned and dry before applying the adhesive tape. For a more secure and permanent solution, use the provided screws and anchors.
7. Especificaciones
| Característica | Especificación |
|---|---|
| Fabricante | sadotech |
| Número de modelo | B00J4FHOB0 |
| Peso del artículo | 6.9 onzas |
| Dimensiones del producto | 3.2 x 1.5 x 3.5 pulgadas |
| Fuente de alimentación (transmisor) | 1 x A23 12V Alkaline Battery |
| Fuente de alimentación (receptor) | 110 Volts (Plug-in) |
| Rango de operación | Hasta 1000 pies (al aire libre) |
| Opciones de timbre | 50+ melodies |
| Niveles de volumen | 4 (30 dB - 110 dB) |
| Color | Blanco |
| Material | abdominales |
| Características especiales | LED Flash, Built-in Memory, Weatherproof Transmitter |
8. Garantía y soporte
For product support, warranty information, or any questions regarding your SadoTech Wireless Doorbell System, please contact SadoTech directly.
Puedes visitar su website or send an email to:
Correo electrónico: support@sadotech.com
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