Pull station non-coded single-action fire alarm station is sturdy, attractive and designed for economical installation. The station provides a single action, break glass, initiating operation. It is available with normally open, normally closed or combination NO/NC contacts. The 270 series have screw terminals for field connection. The 270A series manual stations have 6 inch wire leads. All non-coded stations are designed for either flush or surface mounting. For flush mounting a 4 inch standard North American square box with single gang plaster cover should be used.