Types of Ankle Monitors Explained: GPS, RF, Alcohol & Next-Gen Devices in 2026

When ICE fitted a GPS ankle monitor on 20-year-old Pierre Damas Bel in Springfield, Ohio, this July, the device was one of roughly 53,000 GPS trackers strapped to immigrants under the agency’s Alternatives to Detention program — a 76% increase over the previous fiscal year, according to federal data reviewed by WCPO. Meanwhile in Prince […]

OmniLink OM500 Ankle Monitor Review: Sentinel’s GPS Workhorse vs Next-Generation Alternatives in 2026

When DuPage County, Illinois signed a $678,000 electronic monitoring contract with Sentinel Offender Services in January 2026, the OmniLink OM500 was the hardware at the center of the deal. The same device sits on thousands of ankles across Georgia, Michigan, Florida, and Hawaii through NASPO ValuePoint cooperative procurement agreements. If you’re evaluating GPS ankle monitors […]

House Arrest Ankle Monitor Failures in September 2026: Dead Batteries, Cut Straps, and the $273K Compliance Crisis

In the first week of September 2026, three unrelated cases across Alabama, Texas, and federal immigration courts exposed the same systemic vulnerability in house arrest ankle monitor programs: monitoring devices that fail exactly when courts need them most. In Jefferson County, Alabama, Circuit Judge Thomas Thrash Sr. revoked a murder suspect’s bond after her Sentinel […]

Cook County Electronic Monitoring Crisis: 327 Missing Defendants Expose Systemic Failures in America’s Largest EM Program

When Cook County State’s Attorney Eileen O’Neill Burke stood before cameras in August 2026 and called the county’s electronic monitoring system “fundamentally broken,” she put a number on what corrections professionals across Illinois have known for years: 327 defendants on pretrial electronic monitoring had gone missing. Not temporarily non-reporting—missing. Their ankle monitors had been cut […]