1. Introduction
This manual provides detailed instructions for the TECKNET Wireless Doorbell, Model HWD01878. This system includes two wireless doorbell buttons and one plug-in receiver, designed for ease of use and reliable performance in various home environments. Key features include an extended operating range, IP65 waterproof rating for outdoor use, multiple melody options, and adjustable volume levels.

Image 1.1: Overview of the TECKNET Wireless Doorbell system, showing the main receiver unit and two compact doorbell buttons.
2. Package Contents
Verify that all components are present in your package:
- 1 x Plug-in Receiver
- 2 x Wireless Doorbell Buttons (Transmitters)
- Mounting Hardware (Screws, Wall Anchors, Double-sided Adhesive Tape)
- User Manual (This document)
3. Setup and Installation
The TECKNET Wireless Doorbell is designed for straightforward installation. No wiring is required.
3.1 Installing the Receiver
- Plug the receiver into a standard electrical outlet in your desired location. Ensure the outlet is easily accessible and not obstructed.
- For optimal performance, place the receiver centrally within your home to maximize signal coverage from the doorbell buttons.

Image 3.1: The plug-in receiver unit, demonstrating its compact design and how it integrates into a standard wall outlet.
3.2 Installing the Doorbell Button (Transmitter)
The doorbell button can be installed using either adhesive tape or screws.

Image 3.2: Visual guide illustrating the two installation methods for the doorbell button: adhesive tape for quick setup and screws for a more permanent fixture.
Method 1: Using Adhesive Tape
- Clean the desired mounting surface thoroughly to ensure it is free of dust and moisture.
- Peel off one side of the double-sided adhesive tape and apply it to the back of the doorbell button.
- Peel off the other side of the tape and firmly press the doorbell button onto the cleaned surface for at least 30 seconds.
- Ensure the button is placed in a visible and easily accessible location, typically near your front door.
Method 2: Using Screws
- Open the doorbell button casing (refer to the diagram in Image 3.2 for guidance).
- Mark the positions for drilling holes on your desired mounting surface using the button's back plate as a template.
- Drill pilot holes and insert wall anchors if mounting on masonry or drywall.
- Secure the back plate to the wall using the provided screws.
- Reattach the doorbell button casing to the secured back plate.
Note: The doorbell button is IP65 waterproof, making it suitable for outdoor installation. Ensure the mounting surface is flat to maintain the seal.
4. Operating Instructions
The TECKNET Wireless Doorbell offers customizable settings for sound and visual alerts.
4.1 Adjusting Volume and Melodies

Image 4.1: The side panel of the receiver unit, highlighting the buttons for adjusting volume, selecting ringtones, and cycling through working modes.
- Volume Control: Press the Volume Control button on the side of the receiver to cycle through 5 volume levels (0dB to 120dB). A mute mode (0dB) is available for quiet environments.
- Ringtone Selection: Press the Ringtone Selection button to browse through 60 available melodies. Press repeatedly until you find your preferred chime.

Image 4.2: Illustration of the 5 adjustable volume levels, ranging from 0dB (mute) to 120dB, suitable for different environments and needs.
4.2 Working Modes
The receiver offers three distinct working modes:

Image 4.3: Depiction of the three operational modes: Ringtone Only, LED Only (silent mode, ideal for sleeping or hearing impaired), and a combined LED & Ringtone mode.
- Ringtone Only: The receiver will only produce sound when the doorbell button is pressed.
- LED Only (Silent Mode): The receiver's RGB light will flash without sound. This mode is ideal for sleeping babies or individuals with hearing impairments.
- LED & Ringtone: The receiver will both produce sound and flash its RGB light when the doorbell button is pressed.
To change the working mode, press the dedicated Mode Selection button on the side of the receiver.
4.3 Memory Function
The doorbell system features a memory function that retains your last selected melody and volume level even after a power outage or if the receiver is unplugged.

Image 4.4: The memory function ensures that your preferred melody and volume settings are saved and restored automatically.
5. Maintenance
The TECKNET Wireless Doorbell is designed for durability and requires minimal maintenance.
- Cleaning: Wipe the receiver and doorbell button with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners.
- Battery Replacement: The doorbell button uses a CR2032 lithium battery, which has an estimated lifespan of 4.5 years. When the button's performance degrades or it stops transmitting, replace the battery. To replace, carefully open the button casing, remove the old battery, and insert a new CR2032 battery with the correct polarity.

Image 5.1: The doorbell button's IP65 rating ensures resistance to water and dust, contributing to its long lifespan and low maintenance requirements.
6. Troubleshooting
If you encounter issues with your TECKNET Wireless Doorbell, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Doorbell does not ring |
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| Short operating range |
|
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| Receiver light flashes but no sound |
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7. Specifications
| Feature | Detail |
|---|---|
| Model Number | HWD01878 |
| Operating Range | Up to 1312 ft (400 m) in open air |
| Waterproof Rating | IP65 (Doorbell Button) |
| Melodies | 60 selectable chimes |
| Volume Levels | 5 levels (0dB to 120dB) |
| Working Modes | Ringtone Only, LED Only, LED & Ringtone |
| Operating Temperature | -4°F to 140°F (-20°C to 60°C) |
| Doorbell Button Battery Life | Up to 4.5 years (CR2032 battery) |
| Receiver Power Supply | AC 110-240V (Plug-in) |
| Product Dimensions | Receiver: 3.38 x 2.9 x 3.03 inches (approx.) Button: 2.8 x 1.6 x 0.6 inches (approx.) |
| Included Components | 1 Receiver, 2 Buttons |
8. Warranty and Support
TECKNET products are designed to meet high-quality standards. For specific warranty information regarding your HWD01878 Wireless Doorbell, please refer to the warranty card included in your product packaging or visit the official TECKNET website.
If you require technical assistance or have questions not covered in this manual, please contact TECKNET Customer Support:
- Website: www.tecknet.co.uk/support
- Email: support@tecknet.com
When contacting support, please have your model number (HWD01878) and purchase details ready.





