ODM M38 4G GPS Beidou GLONASS Tracking Device for Vehicle Asset Person Locating Tracking with SOS Microphone Speaker Supporting OTA upgrade & API integration

1. Product Introduction
The M38 represents a next-generation compact tracking solution combining triple-constellation satellite reception with 4G Cat1 cellular connectivity. This plug-and-play device delivers:
Military-grade positioning accuracy through simultaneous GPS/Beidou/GLONASS tracking
Uninterrupted monitoring via magnetic charging and backup power systems
Voice-enabled functionality (compliant with regional regulations)
Legal Notice: Voice features are jurisdiction-restricted and designed exclusively for emergency communications and lawful tracking applications. Unauthorized surveillance use is prohibited.

2. Performance Highlights
✔ Tri-Mode Satellite Lock
72-channel GNSS receiver
<5m civilian accuracy
✔ Intelligent Power Management
Auto-wake charging system
5000mAh emergency battery (optional)
✔ 4G Cat1 Connectivity
MQTT protocol optimized for IoT
-162dBm tracking sensitivity
✔ Geo-Intelligence Features
Dynamic geofencing with multi-level alerts
90-day trajectory memory

3. Technical Parameters

4. Functional Matrix

5. Compliance & Compatibility
China Mobile 4G network certified
RoHS/CE compliant hardware
OTA firmware upgradeable

1.Company info

Youwei Communication is a professional GNSS system (GPS, Beidou. GLONASS, GALILEO) navigation solution provider. Intended to provide a one-stop GNSS satellite timing, measurement, positioning, and navigation solution provider to OEM/ODM customers and system integrators both domestically and internationally. Committed to creating long-term value and potential growth for customers.
Since its establishment, Youwei Communication has established a technical team with rich experience in RF technology, GNSS/WIFI/Bluetooth/GPRS software and hardware development. Guoxing Beidou can provide a series of industrial grade high-quality GNSS navigation and positioning modules such as GPS, Beidou, GLONASS, GALILEO, GPRS communication modules, and indoor positioning solutions. Based on the module core, secondary development and application can be carried out to provide customers with personalized wireless product solutions and enhance their overall competitiveness.
The company's products are widely used in M2M industries such as wireless public telephones, commercial telephones, wireless monitoring, GPS car terminals, home anti-theft, car anti-theft, wireless data transmission, wireless DTU, PND, power meter reading, power system monitoring, water affairs, oil fields, mining, POS free machines, shipping, wireless PDA, logistics, IoT industry chain, industrial automation, information dissemination, etc. Remote meter reading and centralized meter reading for smart grids, municipal street light control, building automation control, industrial (security) video monitoring, water conservancy and hydrological monitoring, financial mobile POS terminals, remote pipeline network monitoring for energy (energy, water supply, heating, etc.), meteorological monitoring, environmental protection, intelligent transportation, smart homes, media advertising, digital healthcare, earthquake monitoring, industrial remote sensing and telemetry, fire safety, coal mines, etc. Real time online detection, oilfield data collection and other fields.