Communicates with computer systems remotely via GPRS mobile phone networks. Allows for data collection at locations where computer systems are not available. Stores data onto its internal memory when GPRS or land-line phone networks are not present for later uploading. Suited for use at locations where the checkpoints are spread over large geographical areas, such as telecommunication cable lines, railroads, and oil pipelines. Also able to directly upload stored data to the computer via USB cable.