M-Tech offers GPS courier tracker to track the live location of packages and shipments. This solution enables the courier and logistics companies to provide their customers a greater visibility and close control over their shipments. The solution works by affixing a GPS tracking device to a package or shipment. This device sends signals to GPS satellites, which in turn sends the location co-ordinates to a central server. The server then processes the data and presents it to the customer through a web based or app based user-friendly interface. It also shows estimated time of arrival and delivery status and also notifies in case of delays.