... transducers 2,dual fans at DC 24V,low heat build-up 3,protect function and fuse Ultrasonic digital generator Compact design ... ,simple operation,light and portable,applicable for up to 2000Watts of power per unit.High performance DSP processor ... : 1,dual fans at DC 24V,low heat build-up2,Aluminum alloy as housing, conformity with CE3,Standard LED indicator lights ...