35kHz/53kHz Dual Frequency Ultrasonic Cleaner with full parameter selection from LCD display menu including controlling 40% - 100% power in 1% increments, memory function and real time display of the set temperature and actual temperature of bath. Switchable operating frequencies. Digital timer (1- 199min) 220V/50Hz, 304 Stainless Steel construction. Featuring the latest double frequency technology combining low and high frequency to give superior and deeper ultrasonic penetration throughout the entire bath for the most demanding cleaning applications and maximum control over your fine or coarse cleaning.