The specification that matters here is the timer: eighteen settings from 90 seconds up to 30 minutes, which lets you match the cycle to the job instead of running everything for the same arbitrary three minutes. A degas function clears the air bubbles that form during operation, and getting rid of them measurably improves how well the cavitation actually works.
The SUS304 stainless tank holds 0.8L full and about 0.5L in practical use, with an internal bath of 5.9 by 3.3 by 2.48 inches - enough for glasses up to roughly 5.9 inches, plus rings, coins, watch parts, fountain pen components, 3D printed parts, bike chains, and small tools. It runs at 40kHz and 35W, and the metal basket keeps items off the tank floor and apart from each other.
There is no heating element, so for better results fill it with warm water at around 40 to 60°C rather than cold from the tap. Do not run it continuously for more than 30 minutes. It is not suitable for soft stones such as pearls - check with a jeweller before cleaning anything valuable. The noise is real, so keep pets out of the room. Lid, basket, cord, and manual are included.
40kHz frequency, 35W ultrasonic power
18 timer settings from 90 seconds to 30 minutes
Degas function removes working air bubbles
SUS304 stainless tank: 0.8L full, approx. 0.5L effective; 5.9 x 3.3 x 2.48 in
AC 100-120V or 220-240V versions
Includes stainless lid, metal basket, power cord and manual
No heater - fill with 40-60°C water for best results; max 30 minutes continuous
Not for pearls or soft stones; keep pets away while running
