Application: leafy exhaust port is usually installed in the hallway or room without windows exhaust system, which can be installed on the side wall or ceiling, usually closed, smoke detector alarm signals emitted when the fire broke out, the control center of the output signals to the row smoke vents control mechanism, quickly open the exhaust port can also be manually opened for smoke. Remote control leafy exhaust port can also be manually opened remotely, remote manual reset. Performance: 1, the electrical signal DC24V open exhaust port; 2, manual open, well-controlled manually open for long distance; 3, manual reset, remote control type for remote manually shut down; 4, when the exhaust port opens the output signals and can interlock with other devices. Note: leafy exhaust port can cater leafy outlet (pressure delivery outlet), usually mounted on the front stairwell before the room or shared room pressurized air supply system, there are far more leaves outlet control type.