Product Overview
The iSonic D3800A-UK is an ultrasonic cleaner designed for effectively cleaning jewelry, eyeglasses, and watches. It utilizes ultrasonic waves to remove dirt and grime from hard-to-reach areas, restoring their original luster and clarity.

This image shows the iSonic D3800A-UK ultrasonic cleaner, a compact white device with a digital display and control buttons, accompanied by its UK standard three-pin plug.
Important Safety Information
- This product is designed for 220V power supply with a UK plug. It is NOT suitable for use in North America (USA, Canada) or regions with 110V power outlets.
- Do not immerse the main unit in water.
- Ensure the unit is unplugged before filling or emptying the tank.
- Do not operate the cleaner without liquid in the tank.
- Keep out of reach of children.
- For items like watches, ensure they are water-resistant before cleaning. Non-water-resistant watches should only have their bands cleaned.
- Avoid cleaning items with loose stones, scratches, or damage that could worsen during ultrasonic cleaning.
What's in the Box
Your iSonic D3800A-UK Ultrasonic Cleaner package includes:
- iSonic D3800A-UK Ultrasonic Cleaner Unit
- Plastic Cleaning Basket
- Watch Stand
- Sample size of iSonic Jewelry/Eyewear Cleaning Solution Concentrate (CSGJ01)

This image displays the iSonic D3800A-UK ultrasonic cleaner alongside its accessories: a plastic cleaning basket, a watch stand, and a small bottle of cleaning solution concentrate.
Setup
- Place the ultrasonic cleaner on a stable, flat, and dry surface.
- Open the lid and fill the stainless steel tank with water. For optimal cleaning, use tap water and a few drops of iSonic cleaning solution concentrate. Do not exceed the MAX fill line.
- Close the lid.
- Connect the UK plug to a compatible 220V power outlet.

This image shows a pair of eyeglasses submerged in water within the stainless steel tank of the iSonic D3800A-UK ultrasonic cleaner, ready for cleaning.
Operating Instructions
- After setup, press the "ON" button to power on the unit. The digital display will show the default cleaning time (e.g., 180 seconds).
- Press the "SET" button repeatedly to cycle through the available cleaning time settings: 180, 280, 380, 480, and 90 seconds. Select the desired cleaning duration.
- Place the items to be cleaned into the plastic basket. For watches, use the provided watch stand. Gently lower the basket into the tank, ensuring items are fully submerged.
- Press the "ON" button again to start the cleaning cycle. The timer will count down.
- The unit will automatically shut off when the cycle is complete.
- To stop the cleaning cycle prematurely, press the "OFF" button.
- Carefully remove the basket from the tank. Rinse the cleaned items under running water and dry them with a soft cloth.
Note: For heavily soiled items, multiple cleaning cycles or a fresh solution may be required.
Maintenance and Care
- After each use, unplug the unit and empty the water from the tank.
- Wipe the stainless steel tank with a soft cloth to remove any residue. Do not use abrasive cleaners.
- Clean the exterior of the unit with a damp cloth. Do not use harsh chemicals.
- Store the cleaner in a cool, dry place when not in use.
- Do not leave water in the tank for extended periods to prevent mineral buildup.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on. | Not plugged in; Power outlet issue; Unit malfunction. | Ensure the UK plug is securely inserted into a 220V power outlet. Test the outlet with another device. If the issue persists, contact customer support. |
| Cleaning results are poor. | Insufficient cleaning time; Incorrect solution concentration; Items too dirty; Tank overfilled. | Increase cleaning time. Add more cleaning solution concentrate. Pre-rinse heavily soiled items. Ensure water level is below MAX line. |
| Unit stops during cycle. | Cycle completed; Overheating protection activated. | Check the display to see if the timer reached zero. Allow the unit to cool down for 10-15 minutes before restarting if it feels warm. |
Specifications
- Model: D3800A-UK
- Brand: iSonic
- Power Supply: 220V, 50Hz
- Power Consumption: 35W
- Plug Type: UK Standard 3-pin plug
- Tank Capacity: 0.6 Liters (1.3 US Pints)
- Tank Material: Polished Stainless Steel
- Tank Dimensions (Oval): 15.5 cm x 9.5 cm x 5.0 cm (6.1" x 3.7" x 2.0")
- Unit Dimensions: 21 cm x 14.5 cm x 14 cm (8.3" x 5.7" x 5.5")
- Weight: Approximately 1.36 kg (3 Pounds)
- Digital Timer Settings: 90, 180, 280, 380, 480 seconds
- Included Accessories: Plastic basket, Watch stand

This image provides a detailed view of the UK standard three-pin plug, indicating the specific power connection type for the iSonic D3800A-UK ultrasonic cleaner.
Warranty and Support
For warranty information and technical support, please refer to the official iSonic website or contact your authorized dealer.
Authorized Dealers: Only Amazon and Joy4Less are authorized dealers for iSonic products. Purchases from unauthorized dealers may void the warranty.
Visit the iSonic Store: iSonic Official Store on Amazon