• Model: WDF-6F•Temperature Scope of Operation: -10°C~+40°C• Work Voltage: 220V AC 50 Hz•Test Liquid Tank Volume: 4L• Testing Tube Volume: 120ml• Ultrasonic Frequency: 25kHz•Ultrasonic Power: 75W• Maximum Testing Number of Cylinder: 6•Rotarion Speed: 0~9950 r/min step 50 r/min• Pulse Duration: 1~20 ms step 0.1 ms• Injection Number of Times: 0~10000..