Ankle Monitor Company — GPS Ankle Bracelet Manufacturer

Leading ankle monitor manufacturer serving corrections, pretrial, parole & probation agencies in 30+ countries. One-piece GPS ankle monitors with 7-day battery, fiber optic anti-tamper (zero false positives), and <3 second installation.

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CO-EYE Hardwares

Next-generation GPS ankle monitors and electronic ankle bracelets. Ultra-high security and reliability powered by 20 years of innovation in electronic monitoring technology.

CO-EYE ONE GPS Ankle Monitor

CO-EYE ONE

The lightest one-piece GPS ankle monitor at 108g. 7-day battery, fiber optic anti-tamper (zero false positives), multi-GNSS positioning under 2m accuracy.

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CO-EYE i-Bracelet/i-Tracker

CO-EYE i-Bracelet/i-Tracker

Two-piece GPS ankle bracelet and tracking unit for precision location monitoring. RF wristband pairs with portable tracker for continuous offender supervision.

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CO-EYE HouseStation

CO-EYE HouseStation

Advanced curfew monitoring with integrated cellular and Bluetooth, plus battery backup for continuous operation.

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bluetooth optical fiber wristband

CO-EYE Wristband

The smallest professional electronic monitoring anti-tamper wristband in the world — only 17g, virtually indistinguishable from a fitness band.

BLE and RF ankle bracelet options with 2-year battery life. Fiber optic tamper detection for GPS ankle monitor pairing with i-Tracker or HouseStation.

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CO-EYE Wristband CO-EYE Wristband Product Line
CO-EYE Monitoring Software Platform

CJIS-READY MONITORING PLATFORM

Our Software is quick, lean, and market-focused.

A CJIS-ready, zero-trust platform with court-admissible evidence reports, 13 modules for GPS ankle monitor management, offender tracking, zone alerts, and compliance reporting. ECDSA-signed data chain from device to courtroom.

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ONE-STOP MONITORING SOLUTION

Complete GPS Ankle Monitor Product Line for All Risk Levels

From high-risk GPS ankle monitors (CO-EYE ONE) to low-risk smartphone tracking (AMClient), our electronic monitoring product matrix covers every offender supervision need on a single unified platform.

CO-EYE Complete Product Matrix

ankle monitor solutions

Monitoring Solutions

Community Correction

Community Correction

 Bail Monitoring

Bail Monitoring

 Risk-Based Monitoring

Risk-Based Monitoring

 Prison & Jail

Prison & Jail

Why Choose CO-EYE GPS Ankle Monitors?

200,000+ devices deployed across 30+ countries. 7-day battery. Zero false tamper alerts. Under 3-second installation.

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200,000+

Devices Deployed

30+

Countries Served

20+

Years of Experience

CJIS

Security Policy Ready

REFINE Technology (CO-EYE) has been a professional ankle monitor company since 2004, providing GPS ankle monitors and electronic monitoring solutions to government agencies, corrections departments, and bail bond companies worldwide.

Ankle Monitor Knowledge Hub

Expert resources to help you understand, evaluate, and deploy electronic ankle monitoring technology.

What Is an Ankle Monitor?

Complete guide to ankle monitors: how they work, types (GPS, RF, alcohol), who wears them, costs, rules, and the technology behind modern electronic monitoring devices.

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GPS Ankle Monitor Procurement Guide

Technology comparison, vendor landscape, 10 evaluation criteria, RFP writing guide, cost analysis, and deployment best practices for corrections and pretrial agencies.

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Latest Resources

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Scotland County Detention Center barbed wire fence - jail overcrowding crisis with 187 inmates in 109-bed facility. Source: Spectrum News 1

Scotland County’s 171% Jail Capacity Crisis Shows Why Risk-Based Electronic Monitoring Is the Only Scalable Answer

Three correctional officers guarding 88 inmates. That ratio—roughly 1:29—was all it took for prisoners at North Carolina’s Bertie-Martin Regional Jail to overpower staff, seize hostages, and trigger a 10-hour standoff on June 29, 2026. Two weeks later, Sheriff Ralph Kersey of Scotland County issued a formal public safety warning: his 109-bed detention center is housing […]

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Police officer on a street in Pakistan — Karachi authorities proposed electronic monitoring for bail suspects but the program remains unimplemented

Why Karachi’s Electronic Monitoring Plan for Bail Suspects Stalled — And What a Practical Deployment Would Actually Require

Karachi’s Sindh police have identified nearly 10,000 habitual offenders cycling through the bail system and re-offending within weeks. In 2022, the Sindh Assembly passed the Sindh Habitual Offenders Monitoring Act, authorizing GPS ankle monitors for repeat bail suspects. The Sindh Cabinet formally approved implementation in April 2025. Procurement tenders for 4,000 e-tagging devices were published […]

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