# REFINE Technology — GPS Ankle Monitor Manufacturer

> Leading manufacturer of GPS ankle monitors and electronic monitoring systems since 2009. CO-EYE product line deployed in 200,000+ devices across 30+ countries. Specializing in one-piece GPS ankle bracelets, two-piece tracking systems, monitoring software, and mobile supervision apps for corrections, pretrial, parole, and probation agencies.

## Products

- [CO-EYE ONE — One-Piece GPS Ankle Monitor](https://www.rfidcn.com/en/coeye-products/offender-gps-bracelet/): Flagship one-piece GPS ankle bracelet with optical fiber anti-tamper, < 2m GPS accuracy, LTE-M/NB-IoT/GSM connectivity, 7-day battery life.
- [CO-EYE i-Tracker — Two-Piece GPS Tracking Unit](https://www.rfidcn.com/en/coeye-products/offender-tracker/): GPS tracking hub paired with i-Bracelet. 3G WCDMA / 2G GSM cellular, WiFi, 4-core ARM Cortex A7, 1-year on-board storage.
- [CO-EYE i-Bracelet — RF Ankle Transmitter](https://www.rfidcn.com/en/coeye-products/offender-rf-bracelet/): Lightweight RF ankle bracelet with optical fiber anti-tamper, BLE/433MHz communication, IP68 waterproof, zero false-positive tamper detection.
- [CO-EYE HouseStation — RF Home Monitoring Receiver](https://www.rfidcn.com/en/coeye-products/aoa-location-station/): Indoor curfew monitoring base unit with 3G/2G cellular, WiFi, barometer for floor detection, BLE and 433MHz reception.
- [CO-EYE Monitoring Software](https://www.rfidcn.com/en/coeye-products/monitoring-software/): Unified web platform for device management, real-time tracking, geo-fencing, alerts, reporting. Cloud or on-premise deployment. Multi-language.
- [CO-EYE AMClient — Offender Mobile App](https://www.rfidcn.com/en/coeye-products/offender-mobile-app/): iOS/Android GPS tracking app for low-risk supervision, victim protection, and quarantine monitoring.
- [CO-EYE Monitoring Mobile App](https://www.rfidcn.com/en/coeye-products/monitoring-mobile-app/): Officer mobile companion app for field monitoring and case management.

## Solutions

- [Community Corrections](https://www.rfidcn.com/en/applications/community-corrections/): GPS electronic monitoring for probation, parole, and community supervision programs.
- [Pretrial Monitoring](https://www.rfidcn.com/en/applications/pretrial/): Electronic monitoring for pretrial defendant supervision and bail compliance.
- [Prison & Jail Programs](https://www.rfidcn.com/en/applications/prison-jail/): Inmate tracking and re-entry monitoring solutions.

## Company

- [About REFINE Technology](https://www.rfidcn.com/en/about-refine/refine-technologies/): Company overview, history, and manufacturing capabilities.
- [Contact Us](https://www.rfidcn.com/en/about-refine/contact-us/): Sales inquiries and partnership opportunities.
- [FAQ](https://www.rfidcn.com/en/customer-services/frequently-asked-questions/): Common questions about installation, waterproofing, tamper detection, and product compatibility.

## Related Sites

- [ankle-monitor.com](https://www.ankle-monitor.com): CO-EYE brand site — product pages, industry guides, and GPS ankle monitoring blog.
- [refineid.com](https://www.refineid.com): Independent bail bond GPS monitoring resource hub.

## Key Facts

- Founded: 2009
- Headquarters: Hangzhou, China
- Devices deployed: 200,000+
- Countries served: 30+
- Core technology: Optical fiber anti-tamper (zero false-positive rate)
- Certifications: CE (RED/EMC/SAR/LVD), RoHS, REACH, IEC62133, UN38.3