Radio frequency technology for offender electronic monitoring :: BI 9000® Series
BI 9000 Series is an electronic monitoring system based on radio-frequency technology that monitors the absence or presence of an individual at home. It helps ensure compliance to schedules and curfews.
BI no longer manufactures the 9000 Series. It has been replaced with BI HomeGuard® 200 electronic monitoring system and other location monitoring technologies that use GPS tracking technology. BI supports agencies using 9000 Series transmitters and receivers with technical support and service.