Product Overview
The SadoTech Waterproof Wireless Pager is a versatile alert system designed for various applications, including elderly monitoring, caregiver assistance, and classroom management. It provides peace of mind with a simple button-press alert. The system includes a portable call button (transmitter) and a plug-in receiver, offering both wearable convenience and fixed installation options.

Image: The SadoTech Wireless Pager system, showing the white receiver unit with a blue illuminated ring and the white, elongated transmitter with a blue button and black lanyard.
Key Features
- SOS Alert System: Designed for quick and easy alerts, ideal for elderly monitoring and caregiver calls.
- Waterproof Transmitter: The call button features a silicone-covered transmitter for protection against spills and splashes, ensuring durability.
- Wearable Design: The compact call button comes with a lanyard, allowing it to be worn around the neck for immediate access.
- Classroom Management: Functions as a wireless doorbell for teachers to signal students quietly and effectively.
- Adjustable Volume & Chimes: Offers 4 adjustable volume levels and over 50 selectable chimes for personalized alerts.

Image: A graphic illustrating the key features of the SadoTech Wireless Pager, including its waterproof design, wearable convenience, variety of chimes, and long battery life.
Components
The SadoTech Wireless Pager system typically includes the following components:
- Receiver Unit: The main unit that plugs into a standard electrical outlet and emits the chime. It features an LED light indicator and volume controls.
- Transmitter (Call Button): A compact, battery-powered unit with a blue button, designed to be worn or placed conveniently. It sends the signal to the receiver.
- Lanyard: For wearing the transmitter around the neck.

Image: An exploded view diagram of the SadoTech Wireless Pager, highlighting the receiver, neck-worn transmitter, LED indicator, volume controls, and speaker.
Setup Instructions
- Unpack Components: Carefully remove the receiver, transmitter, and lanyard from the packaging.
- Install Transmitter Battery: The transmitter requires 1 Lithium Metal battery. Open the battery compartment (usually on the back or side) and insert the battery, ensuring correct polarity.
- Plug in Receiver: Insert the receiver unit into any standard electrical outlet within range of where the transmitter will be used.
- Pair Transmitter and Receiver (if necessary): Most units come pre-paired. If not, refer to the pairing instructions below.
- Press and hold the volume button on the receiver for 5 seconds until the LED indicator flashes.
- Immediately press the button on the transmitter. The receiver should chime, indicating successful pairing.
- Select Chime: Press the "Chime Selection" button on the receiver to cycle through the available melodies. Stop when you hear your desired chime.
- Adjust Volume: Use the volume control buttons on the receiver to set the desired alert volume. There are 4 adjustable levels.
- Attach Lanyard: If using the transmitter as a wearable device, attach the lanyard to the designated loop on the transmitter.
Operating Instructions
Using the Pager for Alerts
To send an alert, simply press the blue button on the transmitter. The receiver will immediately sound the selected chime and its LED indicator will flash, notifying the caregiver or recipient.

Image: A person wearing the compact SadoTech Wireless Pager transmitter around their neck with the included lanyard, demonstrating its wearable convenience.
Classroom Management Use
Teachers can use the pager to signal students for attention, quiet time, or transitions without needing to raise their voice. Place the receiver in a central location in the classroom and keep the transmitter accessible. A quick press of the button can effectively manage classroom noise and activity.
Caregiver and Elderly Monitoring
For elderly individuals or those needing assistance, the wearable transmitter ensures help is always within reach. The caregiver can place the receiver in a common area or carry it with them to be alerted instantly when the button is pressed.
Video: An official SadoTech video demonstrating the "BELL" wearable alert system, showcasing its use for caregiver assistance and classroom management, highlighting its waterproof and wearable features, and adjustable volume/chimes.
Maintenance
- Cleaning: Wipe both the receiver and transmitter with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners.
- Battery Replacement: When the transmitter's range decreases or it stops responding, it's likely time to replace the Lithium Metal battery. Follow the instructions in the "Setup Instructions" section for battery installation.
- Water Exposure: While the transmitter is waterproof, prolonged submersion is not recommended. If it gets wet, dry it thoroughly before continued use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Receiver does not chime when button is pressed. |
|
|
| Chime volume is too low or too high. | Volume setting needs adjustment. | Use the volume control buttons on the receiver to adjust to the desired level. |
| Interference or false alarms. | Other wireless devices nearby. | Try changing the chime melody on the receiver, which may also change the frequency. Move the unit away from other electronics. |
Specifications
- Brand: SadoTech
- Model: B075KZWJ8G
- Color: WHITE
- Power Source: Battery Powered (Transmitter), Plug-in (Receiver)
- Transmitter Battery: 1 Lithium Metal battery required
- Voltage: 3 Volts
- Control Method: Touch
- Item Weight: 1.6 ounces
- Package Dimensions: 4.06 x 3.31 x 2.44 inches
- Number of Chimes: Approximately 52
- Volume Levels: 4 adjustable levels
Warranty and Support
For warranty information, technical support, or to purchase replacement parts, please visit the official SadoTech website or contact their customer service directly. Keep your purchase receipt for warranty claims.
SadoTech Store: Visit SadoTech Store on Amazon

