4l ultrasonic cleaner features:

1, Stamping tank without welding gap for better waterproof.

2, SUS stainless steel lid, basket, and housing.

3, Aluminum heaters for better heating effect.

4, Temperature adjustable from 20 to 80-degree Celsius.

5, Analog timer knob for accurate control:0-20 minutes range.

6, Tank and other metal parts are grounded (ESD-safe).

Ultrasonic cleaning is based on the cavitation effect caused by high-frequency ultrasonic wave vibration signal in the fluid. Microscopic bubbles are formed, and they implode violently causing cavitation which creates an intense scrubbing action on the surface of the item being cleaned. The bubbles are small enough to penetrate microscopic crevices, cleaning them thoroughly and consistently.
Ultrasonic cleaning is extremely effective at removing dirt and grime which would normally require tedious manual cleaning by hand. It has been used to clean a wide variety of instruments and mechanical parts such as carburetors, returning them to almost “like new” condition without damage to delicate parts.