Introduction
This manual provides comprehensive instructions for the SadoTech Crosspoint Wireless Doorbell Kit. This system is designed for ease of installation and reliable operation, offering a wireless range of up to 1000 feet in open areas, 52 selectable chime tones, and 4 adjustable volume levels. The transmitter is weatherproof, suitable for outdoor use.
Package Contents
Please verify that all components are present in your package:
- 1 x Cordless Doorbell Transmitter (Push Button)
- 1 x Plug-in Smart Doorbell Receiver (Chime Unit)
- 1 x Double-sided Mounting Tape
- Wall Anchors
- Screws
- 1 x A23 Battery (for Transmitter)

Image: The SadoTech Crosspoint Wireless Doorbell Kit, showing the plug-in receiver and the push-button transmitter.
Setup
1. Transmitter (Push Button) Installation
The transmitter is designed for outdoor use and is weatherproof. Ensure the mounting surface is clean and dry before installation.
- Option A: Double-sided Mounting Tape
Peel off one side of the protective film from the double-sided tape and adhere it to the back of the transmitter. Peel off the other side and firmly press the transmitter onto your desired location (e.g., door frame or wall) for at least 30 seconds. - Option B: Screws and Wall Anchors
Open the transmitter casing to access the screw holes. Use a small flat-head screwdriver to gently pry open the casing. Locate the mounting holes. Mark the desired drilling spots on the wall. Drill pilot holes, insert wall anchors if necessary, and then secure the transmitter with the provided screws. Close the casing securely after mounting.

Image: Illustration of securing the doorbell transmitter to a surface using screws.

Image: Step-by-step guide on how to open the push button (transmitter) for mounting or battery access.
2. Receiver (Chime Unit) Installation
Plug the receiver into any standard electrical outlet indoors. Ensure it is placed within the operational range of the transmitter and in a location where the chime can be easily heard.
Operating Instructions
1. Changing Chime Tone
The receiver offers 52 different chime tones. To change the chime:
- Press the 'Music Forward' or 'Music Backward' button on the side of the receiver to cycle through the available melodies.
- Once you hear a desired chime, press the transmitter button to confirm and set it. The receiver will remember your selection even if unplugged.
2. Adjusting Volume
The receiver has 4 adjustable volume levels. To change the volume:
- Press the 'Volume Control' button on the side of the receiver to cycle through the volume levels.
- Select the desired volume level.

Image: The side of the receiver highlighting the music selection and volume control buttons.
3. Pairing Additional Units
The SadoTech Crosspoint Series is expandable and compatible with Starpoint Series add-on units. You can pair multiple transmitters to one receiver or multiple receivers to one transmitter.
- To pair an additional transmitter: Plug in the receiver. Press and hold the volume button on the receiver for 5 seconds until it emits a 'ding' sound and the LED flashes. Immediately press the new transmitter button. The receiver will chime, indicating successful pairing.
- To pair an additional receiver: Plug in the new receiver. Press and hold its volume button for 5 seconds until it emits a 'ding' sound and the LED flashes. Immediately press the existing paired transmitter button. The new receiver will chime, indicating successful pairing.

Image: An overview of the expandable Crosspoint system, demonstrating how various SadoTech units can be integrated.
Maintenance
1. Transmitter Battery Replacement
The transmitter uses an A23 battery. When the transmitter's LED indicator no longer lights up or the range decreases significantly, it's time to replace the battery.
- Gently pry open the transmitter casing using a small flat-head screwdriver as shown in the installation section.
- Remove the old A23 battery.
- Insert a new A23 12V alkaline battery, ensuring correct polarity (+/-).
- Close the casing securely.
2. Cleaning
Wipe the doorbell units with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these can damage the finish or internal components. The transmitter is waterproof, but avoid submerging it in water.
Troubleshooting
- No Sound from Receiver:
- Ensure the receiver is securely plugged into a working electrical outlet.
- Check the volume level on the receiver; it might be set to the lowest setting.
- Verify the transmitter battery. Replace if necessary.
- Re-pair the transmitter and receiver if they have lost connection (refer to 'Pairing Additional Units').
- Reduced Range:
- Replace the transmitter battery.
- Ensure there are no large metal objects or thick walls between the transmitter and receiver that could interfere with the signal.
- Relocate the receiver to a more central position.
- Transmitter Button Not Working:
- Check the transmitter battery and replace if needed.
- Ensure the button is pressed firmly and completely.
- Re-pair the transmitter with the receiver.
Specifications
| Manufacturer | SadoTech |
| Model | Crosspoint (1 Receiver + 1 Transmitter) |
| Material | ABS Plastic |
| Color | White |
| Wireless Range | Up to 1000 feet (in open areas) |
| Chime Tones | 52 |
| Volume Levels | 4 |
| Transmitter Battery | 1 x A23 12V Alkaline Battery |
| Weatherproof Rating | Suitable for outdoor use (Transmitter) |
| Item Weight | 5.6 ounces |
| Package Dimensions | 4.02 x 3.39 x 2.4 inches |
Warranty and Support
For warranty information, technical assistance, or any questions regarding your SadoTech Wireless Doorbell Kit, please contact SadoTech customer support. Refer to the product packaging or the official SadoTech website for the most current contact details.




