Sierra Wireless - OMM400


Electronic Monitoring Device

The OM500 is a versatile, one-piece, GPS/cellular ankle-worn electronic monitoring bracelet with 2-way communication. The OM500 was designed to track—and communicate with— all types of offenders 24/7, indoors and outdoors. The OM500 signals offenders using vibrations, sound, and audio alerts, and receives offender acknowledgement in return.

The OM500 can pair with Sierra Wireless’s optional RF and Wi-Fi Beacon to precisely verify in-home locations. OM500 uses the cloud-based software application, FocalPoint®, to visualize, map, and track offender movements and locations.

  • Reduced false alerts compared to other systems
  • Track indoors and in GPS-impaired environments
  • Waterproof, submersible
  • Cut-free strap installation prevents false strap tampers
  • One-piece design, tool-free installation
  • Minimal alerts, less management required
  • Cellular, satellite, Wi-Fi signals for always-on, high precision tracking
  • Rechargeable battery is replaceable, extending useful life of of the device
Technical Specifications

Location Technologies
Wireless Coverage
Sprint network, Verizon network, 9 roaming partners 
FCC compliant, Sprint certified, Verizon 
Small size—3.5”(l) x 2.4”(w) x 1.6”(d), Lightweight—8.4 oz. 
Safety Specifications
Hypoallergenic, SAR compliant, Safe rechargeable battery, No sharp edges, NIJ Emergency Removal Possible Removal Compliant 
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