Scully’s Mobile Truck Tester secures hazmat approval

Technicians now can use the MTT and its upgradeable app at fuel loading racks and other facilities with enhanced safety standards.
Jan. 6, 2026
2 min read

Scully Signal Company recently secured approval for the use of its Mobile Truck Tester (MTT) in hazardous environments—a feature that is required in petroleum-terminal loading lanes and many global regions.

The accompanying app received upgrades, with new functionality, including test report generation, backup and restore capability, and global real-time clock adjustments, among several other enhancements, the company reported.

“The Mobile Truck Tester has been widely adopted by repair shops and fleet technicians because it is simple, ergonomic, and built for true single-person operation,” Dani Alkalay, Scully director of product marketing, said in a news release. “Achieving hazardous-area approval opens new opportunities for use at petroleum terminals and other global facilities requiring these safety standards.”

The MTT provides an intuitive, single-operator solution for troubleshooting and validating tank truck overfill, grounding, and vehicle identification systems prior to loading.

Key capabilities of Scully’s Mobile Truck Tester include:

  • Comprehensive testing for overfill, ground verification, and truck identification systems.
  • Versatility making it ideal for tank truck carriers, independent repair shops, and terminal managers.
  • Single-person operation allows users the ability to conduct wet tests solo with a phone or tablet.
  • Truck ID is easily accessible available on the tester or the app.
  • Single sensor or sensor holder testing through the socket adapter and wire harness.

When paired with the app, the MTT offers added automation to streamline troubleshooting, documentation, and maintenance. Key app capabilities include:

  • Test report results: A simple table of single or aggregated test results that can be shared.
  • Archive test results: Store test logs per truck ID, customer, or work order for historical reference.
  • Advance fault notifications: Detailed failure modes are listed during wet test, allowing for quick repairs.
  • User-friendly digital application: The first-of-its-kind application in the industry is intuitive, easy to use, and supported on IOS and Android devices.
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