Edwards Signaling 270A-DPO Double Pole Fire Alarm Pull Station, Wire Leads, Red. The 270 Series fire alarm pull station is for fire alarm installations in schools, hospitals, factories, and industrial locations. Available in both open and closed circuit designs and has a tamper proof reset function. The station's die cast body is painted red, with painted silver stripes. For replacement glass rods, order Catalog No. 270-GLR (pkg. of 20). The 270 Series mounts on a 4" (102mm) square box with single gang plaster cover. It may be surface mounted using the P-027193 cast back box or the P-039250 steel back box. For weatherproof mounting, order the Catalog No. STI-3150.