Product introduction

GTR-391 series is designed as durable and multi-functional highly efficient Cat 1 LTE connectivity GPS tracker enabling simple, flexible and scalable migration from 2G and 3G to 4G.
A wide range of customize protocols, industry-standard interfaces and vehicle functionalities (such as RS-232, RS-485, OBDII and CANBus) allow the GTR-391 serve a wide range of IoT applications including environmental monitoring, asset tracking, fleet management, and battery systems.

Product Spec

 Multi-band LTE, UMTS/HSPA(+) and GSM/GPRS/EDGE coverage
 820mAh rechargeable battery
 GNSS
 Compact size and Waterproof IPX7 design
 Built-in high sensitivity GPS/Cellularantennas.
 Built-in motion sensor
 Support cell ID
 Multiple I/Os support：
 ACC detection
 RS-232/ RS-485/ CANBus Transmission (Option: Choose one of three)
 Digital Input for custom function or optional emergency button.
 Configuration and firmware update via Over-The-Air
 Support communication protocols- TCP/HTTP/HTTPS/SMS.
 Installation by Double-side Tape & Velcro Tape
 Perfect power management control
 Thermal solution with IPX7 design and waterproof cable connector

Product catalog

Agri-Tech	Technology of cold chain & logistics
Aquaculture	Cold chain management equipment and logistics
Cold Chain & Agri-Food Tech	GPS tracking systems、Refrigerated Storage、Transportation/Logistics systems