... , Professional testing,quality assurance , Sophisticated design/fabulous outlook , Mechanical control Timer, Applications: Electronic factory , Jewelry factory , Chemical lab , ... , etc. 40,000 HzStainless Steel SUS30410 L 1-30 Minutes, Mechanical Timer AC 100 ~ 120V, 50 / 60HzAC 220 ~ 240V, 50 ... / 60 HzUltrasonic Power240 W Heating Power250 W , Mechanical Heating Unit Size330 x 270 x 310 mm ( L x ...