Site Commander's re-deployable capsules are the heart of each security tower. The capsules are capable of starting up and running in arctic temperatures as low as -40c and provide web-managed remote reset with power usage monitoring. The capsules also have built in accelerometers to automatically detect movement or tampering when installed in the tower.

Capsules are designed to slide into the base of a tower and mate with a permanently installed connector. The Capsule provides each tower with all the power, Ethernet and dry contact requirements for each device port.

The Capsule provides trunk connectors for input and output to allow daisy-chaining of towers.