The U02 is a professional-grade UWB anti-tamper positioning watch that is Green-Gps compatible and designed to deliver centimetre-level indoor and short-range outdoor positioning where traditional GPS trackers struggle. Built for high-security and institutional deployments, the U02 combines ultra-wideband ranging, a 2.4 GHz RFID module, integrated vital-sign sensors, and active tamper protection to give operations teams precise real-time tracking and rapid incident detection within the Green-Gps platform.
The U02 complements GPS tracker deployments in the Green-Gps ecosystem by filling the indoor-precision gap: while GPS provides long-range outdoor telemetry and fleet management data, the U02 provides sub-meter to centimetre-level positioning, tamper alerts, and personnel telemetry (heart rate, motion) for environments such as correctional facilities, hospitals, schools, and industrial sites.
Key Highlights
- Green-Gps compatible integration for real-time tracking and centralized monitoring alongside GPS tracker data.
- Centimetre-level UWB positioning (up to 10 cm accuracy under ideal conditions) for precise indoor locating.
- Built-in 2.4 GHz RFID for two-way messaging with anchors and the management system, improving anchor-assisted workflows.
- Conductive strap loop for immediate anti-tamper alarms if the strap is cut or removed—ideal for security-sensitive deployments.
- Integrated motion and heart-rate sensors for live personnel telemetry and health event detection.
- Durable design with IP68 waterproofing, wide operating temperature range, and long standby battery life for continuous operations.
- Touch-button emergency alarm, vibration alerts, and support for system push messages to the device.
How It Works with Green-Gps
The U02 communicates precise location and sensor telemetry to Green-Gps via a UWB anchor network and backend integration. Anchors receive the watch’s periodic UWB positioning packets and RFID exchanges; the anchor system or positioning engine computes location fixes and forwards location and sensor events into Green-Gps for visualization, alerts, and reporting. Green-Gps consolidates these indoor, short-range location events with outdoor GPS tracker telemetry to provide a unified operational view.
- Real-time location and telemetry updates: UWB-derived positions and sensor data are delivered to Green-Gps for live maps and historical playback.
- Tamper & emergency events: conductive strap tamper alarms and touch-button emergency signals are sent as immediate alerts in Green-Gps.
- Sensor uploads: heart rate and motion data are uploaded to the server to enable health monitoring and activity logs.
- Two-way messaging: the integrated 2.4 GHz RFID supports two-way messages between watch and anchors; Green-Gps can push system messages to the device.
- Complementary to vehicle telemetry: when used with GPS trackers in Green-Gps, U02 supplies precise indoor positioning where GPS is limited—useful alongside fleet management, ignition/immobilizer and fuel monitoring telemetry managed by vehicle devices.
Technical Overview
| Positioning Technology | Ultra-Wideband (UWB) ranging with anchor-assisted positioning |
|---|---|
| UWB Frequency | 3.75–4.25 GHz |
| RFID | Built-in 2.4 GHz RFID module (two-way messaging) |
| Optional Interfaces | Optional NFC indicated; contact charging/data interface |
| Antenna | Internal omnidirectional antenna |
| Sensors | Integrated motion sensor and heart-rate sensor; vibration alerts; touch-button emergency alarm |
| Tamper Detection | Conductive loop embedded in strap triggers immediate tamper alarm if strap is cut or removed |
| Positioning Performance | Accuracy up to 10 cm under ideal conditions; unobstructed range up to ~80 meters (anchor-dependent) |
| Battery | Built-in 550 mAh rechargeable battery; standby up to 90 days; typical full charge ~2 hours; low-battery alarm at <20% |
| Durability & Environment | IP68 waterproof; operating temperature −30°C to +60°C; 10–90% RH non-condensing |
| Remote Management | Supports remote firmware upgrade (FOTA) |
| Form Factor | Wearable wristwatch form for personnel monitoring and inspection workflows |
Use Cases
- Prison inmate monitoring and anti-tamper security: immediate alerts on strap removal and precise indoor location for incident response.
- Staff safety and tracking in factories or hospitals: combine real-time location with heart-rate and motion telemetry for well-being monitoring.
- Attendance, inspection and patrol workflows: verify on-site personnel routes and checkpoints with centimetre-level accuracy.
- Schools and institutional deployments: managed wearable tracking for student safety and rapid location during incidents.
- Short-range asset or personnel locating where GPS tracker coverage is limited or unavailable.
Why Choose This Tracker with Green-Gps
The U02 brings a specialized layer of precision and security to Green-Gps-managed deployments. Where GPS trackers supply wide-area telemetry, fleet management details, and vehicle-focused signals such as ignition or fuel monitoring, the U02 provides high-resolution indoor positioning, active anti-tamper protection, and personnel telemetry that GPS alone cannot deliver. Integrating U02 devices into Green-Gps enables unified situational awareness: precise indoor locations, real-time health and movement data, and immediate tamper or emergency alerts are all available alongside conventional telemetry for a complete operational picture.
For organizations that require reliable, auditable location and event data in sensitive environments, the U02 offers rugged hardware, long battery life, and two-way messaging to anchors. Paired with Green-Gps, it supports scalable deployments where security, rapid response, and fine-grained tracking are essential. If your implementation also needs vehicle telemetry such as fuel monitoring, ignition or immobilizer control, the U02 integrates in the same Green-Gps platform with GPS tracker devices to provide a full telemetry solution.
Set Up U02
To set the tracker send the following commands by SMS messages, the sample setup the device password is U9E92b, this password is the default
- Restore factory settings
beginU9E92b - Set the operator APN
apnU9E92b {{apn}} - Set the APN username
apnuserU9E92b {{apnu}} - Set the APN password
apnpasswdU9E92b {{apnp}} - Set the GPRS server
adminipU9E92b 54.85.159.138 8888 - Set the GPRS mode
gprsmodeU9E92b - Set the update interval 60 seconds
t060s***nU9E92b