Enhance your home or office security with the Viking Electronics C-250 Entry Controller, a reliable power supply unit designed for indoor use. This model does not come with a battery, emphasizing its need for a power source to ensure consistent operation. Ideal for those who value safety and accessibility, the C-250 is a single-unit, call-forward-enabled system that promises durability and efficiency. Crafted for simplicity and effectiveness, the Viking brand is synonymous with quality, and this entry controller is no exception. Regardless of the country of manufacture, the unit's design is tailored to meet the needs of both residential and commercial settings. With a straightforward installation process, you can enjoy the peace of mind that comes with a well-designed security system.