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.
Next-generation GPS ankle monitors and electronic ankle bracelets. Ultra-high security and reliability powered by 20 years of innovation in electronic monitoring technology.
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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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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Advanced curfew monitoring with integrated cellular and Bluetooth, plus battery backup for continuous operation.
Learn Morebluetooth optical fiber 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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ENSURING YOUR SYSTEMS SMARTER
A unified web-based platform with 13 modules for GPS ankle monitor management, offender tracking, zone alerts, and compliance reporting. Easily manage your electronic monitoring program at any scale.
Learn MoreONE-STOP MONITORING SOLUTION
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.
200,000+ devices deployed across 30+ countries. 7-day battery. Zero false tamper alerts. Under 3-second installation.
Get started today200,000+
Devices Deployed
30+
Countries Served
20+
Years of Experience
0
False Tamper Alerts
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.
Expert resources to help you understand, evaluate, and deploy electronic ankle monitoring technology.
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.
Read the complete guide →Technology comparison, vendor landscape, 10 evaluation criteria, RFP writing guide, cost analysis, and deployment best practices for corrections and pretrial agencies.
Read the procurement guide →
Transparent ankle monitor cost models for 2026: hardware, daily fees, GPS vs RF economics, hidden false-alarm labor, five-year TCO, and state funding paths—mapped to CO-EYE ONE one-piece GPS and unified monitoring software for agencies and courts.
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Corrections teams can extend fleet uptime and cut false alerts with disciplined GPS ankle bracelet maintenance: charging protocols, strap inspection, firmware readiness, GNSS hygiene, rapid install training, environmental controls, and dashboard-led proactive care—illustrated with CO-EYE ONE specifications.
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Ankle monitor cost in 2026 spans daily fees ($5–$25/day by technology), GPS hardware ($800–$3,000+ per unit), and hidden TCO from alerts and training. Compare jail vs EM, county vs defendant funding, and CO-EYE ONE savings.
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