1Multiple Operation Modes: This dual power generator changeover switch not only supports automatic mode, but also can be operated by manual buttons for easy operation and reliable performance. 2Silver Contacts: This dual power automatic transfer switch adopts silver contacts, which can greatly improve the conductivity and service life of the product, and the switch is more sensitive. 3Excellent PC Material: This generator changeover switch is made of excellent PC material, which is sturdy and wear resistant, good insulation, high temperature resistant, anti aging, safe and reliable. 4Easy To Install: This switch has a compact structure, reliable transmission, easy installation and maintenance, long service life, and can be installed vertically or horizontally, with easy and reliable power supply installation. 5Wide Application: This power transfer switch is widely used in hospitals, stores, banks, chemical industry, metallurgy, high rise buildings, military facilities and other important situations where power failure is not allowed. 1 x Dual Power Automatic Transfer Switch 1 x Manual