CO-EYE is a brand of professional GPS ankle monitors and electronic monitoring solutions manufactured by REFINE Technologies (Shanghai). CO-EYE products are designed for criminal justice applications including community corrections, pretrial monitoring, domestic violence protection, and prison/jail supervision.

What types of ankle monitors does CO-EYE offer?

CO-EYE offers one-piece GPS ankle monitors (CO-EYE ONE, CO-EYE DUO), two-piece GPS systems (CO-EYE Watch, CO-EYE i-Bracelet/i-Tracker), BLE ankle/wrist tethers (CO-EYE Wristband), home monitoring receivers (CO-EYE HouseStation), monitoring software, and a mobile tracker app (AMClient).

What makes CO-EYE ankle monitors different from competitors?

CO-EYE uses proprietary optical fiber anti-tamper detection that provides deterministic cut/no-cut detection, eliminating the false alarms common with heart-rate or capacitive sensing. The one-piece design integrates GPS, cellular, and anti-tamper in a single device, and the patented 3-second snap-on installation requires no tools.

How does optical fiber anti-tamper detection work?

CO-EYE's optical fiber strap contains continuous optical fiber loops that detect any cut, stretch, or obstruction attempt in real-time. Unlike heart-rate or capacitive sensors that produce frequent false alarms, optical fiber provides binary (cut/intact) detection with physical evidence remaining even after a tamper attempt.

What is the battery life of CO-EYE ankle monitors?

Battery life varies by model and configuration. CO-EYE Wristband offers 2-year continuous battery life. CO-EYE DUO features independent anti-tamper monitoring that works even at 0% battery. GPS sampling rate configuration affects battery life — contact REFINE Technologies for specific estimates based on your monitoring requirements.

Can CO-EYE monitors be used for domestic violence protection?

Yes. CO-EYE provides GPS exclusion zone enforcement for protection orders, victim notification when the offender approaches restricted areas, and the AMClient smartphone app offers panic SOS functionality for victim-side protection.

What positioning technologies does CO-EYE use?

CO-EYE uses multi-mode positioning: GPS for outdoor tracking, Wi-Fi for indoor positioning, cellular LBS as backup, and BLE for proximity monitoring. This provides seamless indoor-outdoor coverage with building floor-level positioning capability.

Is CO-EYE waterproof?

Yes. CO-EYE ankle monitors and wristbands are rated IP68 waterproof, suitable for showering and swimming.

Corporate FAQ

WELCOME TO REFINE TECHNOLOGIES

Here Is The Most Frequently Asked Questions.

During our 15 years of experience in providing offender tracking products and services, we have received many questions. Choose a category label below to view some of the most common customer questions and answers about our monitoring technology and products. For specific questions or concerns about your equipment or your case, please contact REFINE Technologies.

AMClient APP supports both iOS and Android smartphones. The app can be downloaded from the Apple App Store or Google Play Store. It requires a minimum of iOS 12 or Android 8.0 to function properly.

Please contact REFINE Technologies directly via email at marketing@rfidcn.com or support@rfidcn.com, or call us during business hours. Our expert support team is ready to assist with any questions about our electronic monitoring products and services.

Yes. All CO-EYE ankle monitoring devices are rated IP68 waterproof, which means they can withstand being submerged in water. Offenders can shower, bathe, and even swim while wearing the device without any risk of damage.

Yes. CO-EYE ankle monitors are designed to be lightweight and comfortable for long-term wear. The CO-EYE ONE weighs only 108g and is designed to allow normal daily activities including exercise. The strap is flexible and available in multiple sizes (S/M/L/XL) for a secure but comfortable fit.

REFINE Technologies has over 15 years of experience in electronic monitoring with 200,000+ devices deployed in 30+ countries. Our products hold European NB CE certifications (RED/EMC/SAR/LVD), RoHS/REACH/WEEE compliance, IEC62133/62321/UN38.3 battery safety, and CyberSecurity EN 18031 certification.

CO-EYE ankle monitors feature an innovative 3-second snap-on installation design. No special tools are required. Simply select the appropriate strap size (S/M/L/XL), wrap it around the ankle, and snap the device into place. The entire process takes less than 3 seconds.

Any removal attempt leaves permanent physical and electronic tamper evidence. For the CO-EYE ONE, the robust construction prevents removal by hand — the standard fiber optic strap requires scissors to cut through, while the steel-armed strap requires heavy-duty bolt cutters. For the i-Bracelet and Wristband, authorized removal requires cutting the strap with scissors. Cutting triggers an immediate electronic tamper alert. After cutting, a dedicated release tool detaches the spent strap from the device.

The optical fiber strap is a single-use consumable — it cannot be removed without cutting, which leaves permanent physical and electronic tamper evidence. After cutting, a dedicated release tool detaches the spent strap from the electronics module. The module is then cleaned, recharged (for GPS devices) or inspected (for BLE wristbands), fitted with a new strap, and re-assigned through the monitoring software for the next participant.

The Public Health Safety User Guide covers the use of CO-EYE monitoring technology for quarantine enforcement, pandemic response, and public health safety applications. Contact REFINE Technologies for the complete guide documentation.