Introduction
Thank you for choosing the TECKNET HWD01888 Wireless Doorbell. This manual provides essential information for the proper setup, operation, and maintenance of your doorbell system. Please read these instructions carefully before use and retain them for future reference.
Setup
Package Contents
- 2 x Wireless Transmitters (Push Buttons)
- 2 x Plug-in Receivers (Chimes)
- Mounting Hardware (Screws, Anchors, Double-sided Adhesive Tape)
- User Manual
Installation of Transmitters (Push Buttons)
The transmitters can be installed using either the provided adhesive tape or screws.
- Adhesive Installation: Clean the desired mounting surface thoroughly. Remove the protective film from one side of the double-sided adhesive tape and attach it to the back of the transmitter. Remove the remaining film and firmly press the transmitter onto the wall or door frame for at least 30 seconds.
- Screw Installation: Open the back cover of the transmitter. Use the provided screws and anchors to secure the back plate to the wall. Once the back plate is secure, snap the transmitter onto the plate.

Image: Dimensions of the TECKNET wireless doorbell transmitter and receiver, showing the push button and plug-in chime units.
Installation of Receivers (Chimes)
Simply plug each receiver into a standard electrical outlet in your desired location. Ensure the outlet is easily accessible and not obstructed.
Video: This video demonstrates the easy setup and installation process for the TECKNET wireless doorbell, including attaching the transmitter and plugging in the receiver.
Operating Instructions
Changing Melodies
Your doorbell offers 60 different melodies. To change the melody:
- Press the 'Forward' or 'Backward' button on the side of the receiver to cycle through the available melodies.
- Once you hear a melody you like, stop pressing the button. The doorbell will save your selection automatically.
Adjusting Volume
The doorbell has 5 adjustable volume levels, ranging from 0 dB (silent) to 120 dB. To adjust the volume:
- Press the 'Volume' button on the side of the receiver to cycle through the 5 volume levels.
- Select the desired volume level.

Image: The TECKNET wireless doorbell receiver displaying its features, including 60 selectable melodies and 5 adjustable volume levels (0-120 dB).
Operating Modes (RGB Flashing Light)
The receiver features an RGB flashing light that can be used in conjunction with the chime or independently.
- Sound + RGB Flash: The doorbell will chime and the RGB lights will flash when the transmitter is pressed.
- RGB Flash Only (Silent Mode): The doorbell will only flash its RGB lights without producing any sound. This is ideal for quiet environments or for individuals with hearing impairments.
- Sound Only: The doorbell will only produce sound without the RGB lights flashing.
To switch between modes, press and hold the melody selection button on the receiver for approximately 3 seconds.

Image: The TECKNET wireless doorbell receiver operating in mute mode, where only the RGB flashing light activates upon a visitor's arrival, ensuring undisturbed rest.
Video: This video provides a demonstration on how to use the TECKNET wireless doorbell, including changing melodies, adjusting volume, and selecting different operating modes.
Maintenance
Battery Replacement (Transmitter)
The transmitter uses a CR2032 battery (included). The battery life is approximately 4.5 years. When the transmitter's indicator light no longer illuminates or the signal becomes weak, it's time to replace the battery.
- Carefully open the back cover of the transmitter using a small screwdriver or coin.
- Remove the old CR2032 battery.
- Insert a new CR2032 battery with the positive (+) side facing up.
- Close the back cover securely.

Image: The TECKNET wireless doorbell transmitter highlighting its CR2032 battery, which provides an estimated 4.5 years of operation before needing replacement.
Cleaning
Wipe the doorbell units with a soft, dry cloth. Do not use abrasive cleaners or solvents, as these may damage the surface.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Receiver does not chime | Receiver unplugged or power outage. Transmitter battery low/dead. Units out of range. | Ensure receiver is plugged in and powered. Replace transmitter battery. Move receiver closer to transmitter. |
| Short wireless range | Thick walls, metal structures, or other electronic devices causing interference. | Relocate receiver or transmitter to minimize obstructions. Avoid placing near large metal objects or other wireless devices. |
| Melody/Volume settings reset | Power interruption to the receiver. | The doorbell has a memory function; settings should be retained. If not, re-select your preferred melody and volume. |
Specifications
- Model Number: HWD01888
- Wireless Range: Up to 400 meters (1300 feet) in open areas
- Melodies: 60 selectable chimes
- Volume Levels: 5 levels (0 dB to 120 dB)
- Waterproof Rating (Transmitter): IP65 (dustproof and resistant to water jets)
- Operating Temperature: -20°C to 60°C (-4°F to 140°F)
- Transmitter Battery: 1 x CR2032 (included), estimated 4.5 years life
- Receiver Power: AC 100-240V, 50/60Hz (Plug-in)

Image: The TECKNET wireless doorbell transmitter demonstrating its IP65 waterproof rating and ability to withstand extreme weather conditions, from -20°C to 60°C.
Warranty and Support
TECKNET offers a 36-month support period for this product (registration may be required). If you encounter any issues or have questions regarding your TECKNET HWD01888 Wireless Doorbell, please contact the professional TECKNET customer service team for assistance.





