Trailer Tracking Asset Gateway

The AG15 asset gateway is purpose-built for monitoring tethered and untethered trailers. Affordable and easy to install, the AG15 provides real-time visibility, wireless temperature monitoring, instant alerts, and business-relevant analytics, improving efficiency and profitability in transportation and supply chains. Part of Samsara's complete IoT solution, the AG15 integrates seamlessly with in-cab fleet and driver monitoring, giving operators visibility into their entire fleet in a single pane of glass.

List price: $249 plus $15/mo license, or $12/mo with 3-year term (all-inclusive license includes cellular data, maintenance and support, and cloud-based software.)

Pinpoint any trailer's location in real time

Samsara provides continuous, real-time location visibility enabling operators to instantly find trailers in the yard, streamlining routing and dispatch, and improving customer service.

Measure and optimize utilization

By collecting and analyzing usage data, Samsara identifies underutilized trailers that could be moved to higher-demand locations or routes with more revenue potential.

Recover lost or stolen assets

Samsara provides easy-to-use geofences and alerts, enabling operators to intstantly detect and respond to theft or unauthorized use. Samsara's real-time location tracking enables law enforcement to quickly recover stolen assets.

Cost-effectively monitor reefer temperature

The AG15 is compatible with Samsara's easy-to-install wireless temperature monitors and sophisticated temperature reporting and alerting software. Track temperature of trailers in the field, enable SMS and email alerts to avoid spoilage, and automatically generate temperature reports for compliance and customer SLAs.

Installs in 15 minutes

With a weatherproof design, flexible power options, and fully wireless accessory sensors, the AG15 can be installed on most trailers in just minutes.

Download Datasheet

Features and Specifications

Data Inputs


High-precision GPS with internal antenna

Wireless Sensors

Zero-configuration temperature monitoring with Samsara EM-series wireless temperature sensors
Compatible with 3rd party sensors (fluid tank level, gas pressure, etc.) via IM-series wireless input modules

Internet Connectivity


Continuous 3G cellular connectivity
Global coverage, works in over 150 countries
GSM/GPRS/EDGE: Quad band 850/900/1800/1900MHz
UMTS/HSPA+: Five band 800/850/900/1900/2100MHz
Optimized for remote areas with weak signals

Data Security

All Internet connectivity secured via SSL with 256-bit AES encryption (encryption standard for sensitive data including military and financial applications)

Data Transmission and Storage

Real-Time Connectivity

Streams sensor data to the Samsara Cloud in real time

Built-in Storage for Offline Logging

Sensor data stored in built-in flash memory when Internet connectivity is unavailable
High-capacity flash memory stores tens of millions of sensor data points


Power Efficiency

Low power consumption: 1W typical power draw when connected to power source, 100 mW power-save mode for battery-powered operation
12V-48V DC input power, with simple installation connecting to seven-way connector
Internal battery enables up to 45 days battery-powered operation. Battery charges automatically via seven-way.


Requires AG license (list price $15/mo). License includes maintenance and support, full online dashboard access, mobile app access, unlimited sensor data storage, monthly feature updates, and continuous cellular connectivity via Samsara gateway. Automatic discounts available with extended license term.