Jmak J-R12
Jmak J-R12 is an advanced hardwired vehicle tracker designed for light and heavy vehicle fleet telematics, made by Brazilian manufacturer Jmak Tecnologia. It combines 4G LTE (with 2G fallback) cellular connectivity with multi-constellation GNSS supporting GPS, GLONASS, BeiDou and Galileo. The device features built-in CAN bus reading with pre-mapped vehicle libraries, enabling fuel consumption, RPM, speed and other telemetry data without custom sniffing. Additional interfaces include RS-232 for accessories such as driver ID readers and temperature sensors. An internal backup battery ensures continued operation when vehicle power is unavailable, and 10,000-point data backup preserves records during connectivity gaps. Managed via the JotaWeb platform.
The exact server address and port for your device is specified in Unit Settings on the Hardware tab.
The list of possible addresses is below:
We recommend the app:
Global network of telematics service providers
Global network of telematics service providers
The GPS-Trace team develops and supports software used by telematics service providers to offer GPS tracking services worldwide.
A listing on the service provider map helps clients find your company, view its services and contact you about a local tracking project.
How it works
Register
Sign up for a service provider account at partner.gps-trace.com and complete onboarding to get familiar with the platform’s tools and capabilities.
Activate Trial
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Explore all features and learn how to manage clients, devices, and plans.
Set up & connect
Set up client accounts depending on their needs — GPS tracking or asset monitoring — with the required functionality.
Add and configure units, gateways, or assets in just a few clicks.
Share & start tracking
Share the app link or QR code with your client to give them immediate access to their configured account and connected devices.