This document outlines considerations in the selection of a cost-effective school-alarm system. Steps in the planning process include: conducting a district needs assessment; gathering input from all staff levels; consulting technical expertise; and selecting a security system that can be integrated with other site needs. It further describes the elements of an alarm system, the types of sensors and transmitters, installation methods, and specifications of the bidding process. Schools must also consider contracting issues, staffing responsibilities, cost, specifications for the bidding process, quality of the components, and staff authorization. (LMI)