Heavy duty dual gate opener for dual swing gates up to 18 ft. long or up to 850 lbs. (each leaf). ideal for farm, ranch, and estate gates. easy to install low voltage system, no electrician or welding required. commercial grade soft start/soft stop feature increases life of hardware and opener. large control box with room for extra battery and accessories. works on all types of gates - chain link, tube, panel, ornamental, wood, and vinyl. please note that solid gates create wind resistance and can affectthe performance of the entire gate system. contact technical service for the best advice for your specific application. provides up to 225 cycles per day using transformer charger. ul approved - obstruction sensing enhances gate operation safety. adjustable gate activation alert and auto-close. 12-volt battery backup (included) opens and closes the gate even during a power outage. designed for gates that open into or out from the property. compatible with all accessories including solar panels. requires two so fm148 push to open brackets. use two fm121 panels for dual gates.