WATCHMAN Wheel-End Sensor Technology

September 13, 2021

Hendrickson Forges Ahead with Launch Plans for WATCHMAN® Trailer Wheel-End Sensor Technology, Powered by Sensata Vehicle Area Network

For Immediate Release

For more information contact:
Mark Slingluff
(330) 489-0050

CANTON, OH. (September 2021) Hendrickson Trailer Commercial Vehicle Systems moves forward with launch plans for WATCHMAN® wheel-end sensor technology for trailers that operate on the vehicle area network developed by Sensata Technologies (NYSE: ST). The initial product offering will include trailer tire pressure and wheel-end temperature data that is communicated to the fleet via the trailer telematics system.

Hendrickson worked with the Society of Automotive Engineers (SAE) to utilize industry standards according to established J1939 protocol, for the communication of data and fault codes for trailer wheel-end information.

“This common platform allows Hendrickson’s WATCHMAN® wheel-end sensor to be used by OEMs to provide crucial trailer data to their customers,” says Omar Fernandez, director of marketing at Hendrickson Trailer Commercial Vehicle Systems.

Tire pressure monitoring, coupled with the inflating, relieving, and equalizing capabilities of TIREMAAX® PRO and PRO-LB, helps fleets minimize tire wear and maximize fuel economy by managing trailer tire pressures. The WATCHMAN system has been uniquely designed to seamlessly integrate into TIREMAAX®

Early warnings of low tire pressure or leakage and/or elevated temperatures can help minimize the cost of repairs and maintenance of crucial wheel-end components.  The hubcap-mounted, battery-powered wheel-end sensors transmit wireless RF signals to the gateway module, collecting the data and acting as the trailer’s communication hub. The information will be transmitted from the gateway module to the trailer telematics device for transmission to the fleet’s back office.

Hendrickson is working with industry-leading telematics providers to integrate data from the WATCHMAN wheel-end sensor into their telematic solutions, to provide timely and actionable data for enhanced fleet efficiency and uptime.

WATCHMAN wheel-end sensor technology will be an available option on TIREMAAX PRO and PRO-LB tire pressure control systems.  It is scheduled to launch in early 2022.

Hendrickson, a Boler company, is a leading global manufacturer and supplier of medium- and heavy-duty mechanical, elastomeric and air suspensions; integrated and non-integrated axle and brakes systems; tire pressure control systems; auxiliary lift axle systems; parabolic and multi-leaf springs; stabilizers; bumpers; and components to the global commercial transportation industry. Hendrickson, based in Woodridge, Ill., USA, continues to meet the needs of the transportation industry for more than 105 years. Visit Hendrickson at

Sensata Technologies is a leading industrial technology company that develops sensors, sensor-based solutions, including controllers and software, and other mission-critical products to create valuable business insights for customers and end users. For more than 100 years, Sensata has provided a wide range of customized, sensor-rich solutions that address complex engineering requirements to help customers solve difficult challenges in the automotive, heavy vehicle & off-road, industrial and aerospace industries. With more than 19,000 employees and operations in 13 countries, Sensata’s solutions help to make products safer, cleaner and more efficient, more electrified, and more connected. For more information, please visit Sensata’s website at

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