... life.2. tank capacity:15L(4gallon), with mechanical timer & heater control3. with Stainless steel basket4.Use ... more higher cleaning requirement5.industrial control chip microcontroller.flexible circuit boards control, more secure & stable6. ... Ultrasonic Frequency40,000 HzMaterialStainless Steel SUS304Tank Capacity15 LTimer1-30minutes, mechanical timerPower SupplyAC 100 ~ 120V, 50 / 60HzAC 220 ...