The Brake-Boss<span class='fw-normal ms-1'>®</span> Portable

The Brake-Boss® Portable

The portable solution for your air-brake testing needs.

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Great Things Come In Small Packages.

Introducing the revolutionary Brake-Boss® portable air brake tester—a game-changer for your rail yard operations. With its unmatched flexibility, testing your air brakes has never been easier. Just hook up your air source to the Brake-Boss® Portable, link it to the train, and watch the magic happen. This cutting-edge device conducts the full air-brake test seamlessly. You can take charge of the test directly on the device's touchscreen or through the user-friendly Brake-Boss® App. Say goodbye to complicated procedures and hello to efficiency with the Brake-Boss®.


The Brake-Boss® Portable stands out as an innovative automated Class 1 air-brake test device that not only saves valuable time and money but also reduces any chances of human error during the testing process. This portable device can be used in many locations throughout the train yard as well as off yard sidings. The convenience of remotely controlling brake tests through the Brake-Boss® app or directly via the Portable's user friendly touchscreen further streamlines operations. With the capability to be used just about anywhere, the Brake-Boss Portable emerges as a versatile and indispensable tool for rail yards seeking enhanced safety, efficiency, and accuracy in their air-brake testing procedures.

Lightweight & Rugged

The Brake-Boss® Portable is a remarkable tool housed in a durable lightweight case that boasts a proven track record for ruggedness, waterproofness, and resilience in harsh environments. Designed with portability in mind, the Brake-Boss® Portable has been meticulously crafted to be as lightweight and mobile as possible. Opening the lid reveals a sleek carbon fiber control panel, chosen for its exceptional strength to weight ratio, making it the ideal material for this purpose. This thoughtful design ensures that the Brake-Boss® Portable not only withstands tough conditions but also remains easy to carry and use on the go, making it a reliable and efficient tool for various applications.

Frequently Asked Questions

You might be suprised. Check out our Savings Calculator to find out.

You bet. When crafting these units, our team faced a major challenge: ensuring top-notch durability. The Brake-Boss® Portable not only meets but exceeds military standards, guaranteeing long-lasting performance.

Absolutely. The Brake-Boss® Portable when closed is completely watertight. Crafted to withstand the harshest of conditions, the Brake-Boss® Portable can handle extreme temperatures and weather, ensuring unparalleled protection.

The units need calibration every 365 days of use.

Depending on outside air temperatures, you can expect 8 to 10 hours of battery life. Recharge time is approximately 2 1/2 hours.

The Brake-Boss® Portable In The Field

The Brake-Boss Portable in the field.
The Brake-Boss Portable in the field.
The Brake-Boss Portable in the field.
The Brake-Boss Portable in the field.
The Brake-Boss Portable in the field.
The Brake-Boss Portable in the field.


Dimensions 19"W x 15"D x 7.5"H
48cm W x 38cm D x 19cm H
Weight 35 lbs
15.8 kg
Power Internal recharable lithium-ion battery
Data Connectivity Cellular
Operating Temperatues -10°F to 120°F
-23°C to 49°C
Air Requirements Your regulated yard air
Air Line Reccomendations Input/Output - Railroad gladhand connections

Product Warranty

The YardMaster® is backed by a robust standard 1-year warranty safeguarding every component against manufacturer's defects and unit failures. For those seeking ultimate peace-of-mind, an extended warranty option is available at the time of ordering. Elevate your protection with an additional 2-year coverage, extending the warranty to a total of 3 years.

Warranty coverage does not extend beyond normal wear and tear or negligent use of product.


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