1. The machine should be installed at house with excellent ventilation and without direct sunshine 2. The surrounding should be directly disposed according to fire prevention standard. 3. It is strictly prohibited to smoke and use naked flame around the machine. 4. Don’t use unqualified cleaner and testing liquid in case it will do harm to the fuel way of the machine 5. Before operation,please carefully read corresponding operation instruction dates External dimension:535*470*790mm Weight:38kg Power supply:AC220V+/-10% 50HZ 300W Operating environment:Temperature 10~+40 Tank content:3 liters Tube content:120CC Ultrasonic frequency:28KHZ Ultrasonic power:100W Detected cylinder number: FOCUS AT1.0-4 1~4(4 cylinders) FOCUS AT 1.0-6 1~6(6 cylinders) FOCUS AT 1.0-8 1~8(8 cylinders) Rotating speed range:650r/min~9950r/min Step length:50r/min Pulse width:6~80ms Step length:0.1ms System flow:4 liter/min System pressure:0-6.5Bar adjustable