Samsara Expands Smart Trailer Capabilities

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NASHVILLE, Tenn. — Fleet telematics vendor Samsara has expanded its smart trailer offerings with several new features aimed at improving maintenance and operational efficiency.

The new capabilities, including trailer power and tire monitoring as well as tractor-trailer mismatch alerts, give fleet operators and drivers greater insights into the health and status of their trailers.

The company’s smart trailer features are enabled by the Samsara asset gateway device, which installs in under five minutes and can be mounted on trailer undercarriages to prevent tampering or theft.

Samsara introduced its expanded trailer monitoring capabilities during a March 9 press briefing at American Trucking Associations’ Technology & Maintenance Council’s 2025 Annual Meeting and Transportation Technology Exhibition.

Samsara’s new power monitoring feature detects when trailers lose power while they are on the road and helps fleets diagnose and resolve those issues.

Power loss can compromise the trailer’s anti-lock braking system, which in turn can increase stopping distances, pose safety risks and lead to power loss for other electrical peripherals on the trailer.

In most cases, trailer power loss is caused by a problem on the truck, such as a blown ABS fuse, Gal said. (John Sommers II for Transport Topics)

“We’ve been able to observe that at scale, about 15% of trailers in North America do not get power during a trip, which is a shocking statistic,” said David Gal, vice president of product and engineering at Samsara.

In most cases, trailer power loss is caused by a problem on the truck, such as a blown