The AT312EQ is part of the AGPS1 tracking line. While the device requires a power source, it does contain an internal back up battery. This unit has been specifically designed and engineered to update on a daily basis or manual locate. It will automatically generate unauthorized movement alerts if an automatically generated perimeter fence is broken. The device will continue to provide an unauthorized movement alert every 30 minutes until stationary. Once stationary, the device creates its own circular perimeter fence, one mile in diameter. The AT312EQ can be installed on any asset that contains a 12 or 24 volt power source. The device is built to withstand harsh environments and can function in up to 1 meter of water. Its cellular and GPS antennas are completely integrated. The AT312EQ is supported by our optional 2 and 3-year extended manufacturer’s warranty.