Skip to Primary Navigation Skip to Site Navigation Skip to Main Content All Site Map

Two Piece GPS Tracking System

3M Electronic Monitoring banner

3M™ Two-Piece GPS Offender Tracking System integrates tracking, communication and mapping technologies that enable operators to effectively track offenders, virtually anywhere, anytime at varying levels of intensity. The system is operated on a single software platform and benefits from nearly two decades of field experience.

3M™ Two-Piece GPS Offender Tracking Systems are designed specifically for offender monitoring operations, with security redundancies and anti-tamper means built-in across the platform, helping ensure its performance meets criminal justice agencies goals.

The units track offenders outdoors, utilizing GPS technology and communicate the data via GPRS protocols. Cradles are used to charge the units when offenders are at home. The cradles can optionally have embedded landline communication for efficient data uploads to the monitoring center. Unit software updates can be conveniently upgraded remotely.

Key features:

  • Four supervision levels: active, alert, passive and RF curfew monitoring
  • Multiple methods of offender communication: two-way voice, text messages, vibrating alerts LED lights or beeping
  • Backup landline communication
  • Collects GPS points every 60 seconds (adjustable); once every 15 seconds when in zone violation
  • Multiple tracking technologies for redundancy
  • Remote software upgrades and modifications
  • Extended memory enables storage of 30 days tracking data
  • Motion detection if no GPS reception
  • Multiple tamper detections
  • Simple, five minute activation
  • Splash and shock resistant
  • Small scale and lightweight (6.0 ounces, 170 grams); easily carried or worn on hip
  • Multilingual menu and message display
  • 48-hour battery power



Integrated Monitoring

3M Electronic Monitoring delivers greater value and enhanced operational efficiencies via a suite of high-end technologies working seamlessly together over a single software platform. Read more about the Integrated Monitoring Platform.


Find Your Solution