Plus white sounder base with pcb module, battery, no cover. Grade 3.
Plus red sounder base with pcb module, battery, no cover. Grade 3.
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.
