Plus green sounder base with pcb module, battery, no cover. Grade 3.
Plus black sounder base with pcb module, battery, no cover. Grade 3.
Plus blue sounder base with pcb module, battery, no cover. Grade 3.
Plus amber sounder base with pcb module, battery, no cover. Grade 3.
E white sounder base with pcb module, battery, no cover. Grade 3.
