long barrel fire monitor is a new fire control product with advanced level in the world. it is used to put out general solid fire. it is short installed in fire engines, fire boats, oil terminals and other places. the gun has wide matching range, long range and multiple functions. it can realize stepless adjustment of water mist jet from direct current to 90 ° with flexible and convenient operation. the gun body can rotate horizontally and pitching, and can realize positioning, so as to facilitate firefighters to evacuate from the fire site.