Shanghai REFINE Technologies

REFINE Technology is a manufacturer of GPS ankle bracelets and electronic monitoring solutions, serving corrections and community supervision agencies worldwide under the CO-EYE brand ankle monitor products.

Founded in 2004, we have deployed over 200,000 devices across 30+ countries. Our CO-EYE product line features industry-first adaptive multi-mode connectivity (BLE/WiFi/LTE), extending battery life from the industry-standard 24-72 hours to 7 days in LTE mode, 20 days in WIFI-directed mode, and 180 days in BLE-connected mode, supports patented 3-second fast installation/removal feature.

Our flagship CO-EYE ONE weighs just 108 grams — the lightest one-piece GPS ankle monitor available — and uses fiber-optic tamper detection achieving zero false alarms.

Products:

• CO-EYE ONE — One-piece GPS ankle monitor (108g, 7-day LTE / 20-day WIFI-directed battery life)

• CO-EYE ONE-AC — Enhanced version with eSIM, triple-mode connectivity engine for LTE standalone/WIFI-directed/BLE-connected.

• CO-EYE i-Bracelet — The smallest professional anti-tamper bracelet for wrist-worn or ankle-worn with criminal justice security level in the world. 

• CO-EYE HouseStation — Home beacon with voice communication

• CO-EYE Monitoring Software — Enrollee-centric supervision platform 

We serve corrections agencies, pretrial supervision programs, bail bond GPS monitoring providers, and electronic monitoring service companies globally.