A sentry box is a small building structure usually used to house and guard personnel in a specific location to monitor, manage, or provide services. It is also known as sentry booth, sentry booth, post booth, etc. The box generally has a simple design and function to meet the specific needs of use. A sentry box is a small building structure usually used to house and guard personnel in a specific location to monitor, manage, or provide services. Sentry booths can be found in public and private areas, such as communities, industrial areas, commercial centers, construction sites, parking lots, etc. Their presence helps to maintain order, provide services and increase security, providing a suitable working space for staff.