Lightweight, durable and fully-enclosed compact case. 4-stroke unleaded petrol engine with ECO throttle system to reduce fuel consumption and noise. Low oil level alarm with automatic engine stop. Model No: IM1000SIG Recoil Start 4 Hours Max. Run Time at ¾ Load Oil Level Alert IP23M Overload Protection 2 x 2.1A USB Sockets 12V DC Socket Inverter THD Less than 3% Double-Shell Acoustic Insulation Model No: IM1000SIG Recoil Start 4 Hours Max. Run Time at ¾ Load Oil Level Alert IP23M Overload Protection 2 x 2.1A USB Sockets 12V DC Socket Inverter THD Less than 3% Double-Shell Acoustic Insulation