For those individuals categorized as Low to Moderate Risk, the ordering authorities have available to them the standard radio frequency Electronic Monitor. This unit is the most common unit in use and is the ideal level of monitoring for those individuals who have both a stable employment and residence history and whose violations involve non-serious offences. In these cases, the individuals daily travel routines do not vary a great deal and a detailed record of movement is generally not needed. In addition, if an individual is required to be on "house arrest", or is to adhere to a daily curfew, the standard unit would be the preferred unit. By utilizing a cellphone connection, ankle bracelet transmitter, and cutting edge computer technology these individuals’ movements are monitored to insure curfew compliance.