
Industries /Aerospace and Defense
Aerospace and Defense
Thomas Products delivers rugged, precision-engineered sensor solutions tailored to the demanding environments of the aerospace industry. From ground support systems to onboard subsystems, our level sensors are trusted across a wide range of aerospace applications. Whether it’s supporting hydraulic lift platforms used during aircraft assembly and maintenance or controlling fluid levels in onboard systems such as food chillers and cargo loaders, Thomas Products’ sensors ensure performance, safety, and durability under pressure.

Hydraulic lift platforms are essential tools in both commercial and military aviation, providing the stability and lifting power needed to assemble, inspect, and maintain aircraft components at various stages. These platforms rely on accurate fluid level monitoring to operate safely and effectively. Thomas Products’ 1100/1200 series level sensors are built to withstand the harsh conditions of aerospace ground support environments, delivering consistent readings in high-pressure hydraulic systems.
With chemically resistant materials and rugged construction, our sensors are designed to handle temperature extremes, vibration, and repeated heavy-duty use, making them ideal for aerospace applications where failure is not an option. These level sensors offer customizable mounting options and compatibility with a wide range of hydraulic fluids, ensuring integration flexibility and long-term reliability.
Application
Thomas Products’ 1100/1200 series level sensors are used extensively in aerospace hydraulic systems, where fluid level precision is critical to the performance and safety of equipment. From aircraft lift platforms in hangars to mobile cargo loading units and auxiliary systems within the aircraft cabin, our sensors deliver accurate, repeatable measurements in mission-critical scenarios.

Aircraft Hydraulic Lift Platforms
Our 1100/1200 level sensors are embedded in hydraulic lift systems that support aircraft during construction, inspection, and repair. By monitoring fluid levels in real-time, they help maintain optimal hydraulic pressure, prevent system failures, and ensure safe, efficient operation, whether lifting a wing section or positioning a fuselage.

Onboard Systems – Food Chillers & Cargo Loaders
In commercial aviation, Thomas Products’ sensors are used to manage fluid levels in auxiliary systems such as food and beverage chilling units and hydraulic cargo loading mechanisms. Their compact design and compatibility with aerospace-grade fluids make them ideal for confined, vibration-prone onboard environments where reliability is crucial.
Products
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1100 Series Liquid Flow Switch
Regular price From $301.88 USDRegular priceUnit price / perModel 1100, Liquid Flow Switch, In-line/ Pipe Installation, Bronze, 3/4″ FNPT, 0.5 GPM Increasing Flow, SPDT 20VA Pilot Duty, -14.7 to 400 PSI @ 100°F, -20°F to 300°F -
1200 Series Adjustable Liquid Flow Switch
Regular price $367.50 USDRegular priceUnit price / perModel 1200, Liquid Flow Switch, In-line/ Pipe Installation, Bronze, 1″ FNPT, 0.75-6.0 GPM Increasing Flow, SPDT 20VA Pilot Duty, -14.7 to 400 PSI @ 100°F, -20°F to 300°F -
1100 Series Liquid Flow Switch - SST
Regular price From $1,107.75 USDRegular priceUnit price / per