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Accurate level measurement is critical — from EPA-compliant reporting in municipalities to maximizing process efficiency and profitability in industrial plants. FLO-CORP provides a complete range of noncontact and guided level monitoring solutions engineered to deliver precision, reliability, and long-term performance in even the most challenging environments.

Our level measurement sensors are designed to support mission-critical applications such as monitoring fuel levels in back-up generator systems, chemical tank level monitoring, oil level and used cooking oil monitoring, and other processes where precise measurement is essential. From industrial-level sensors to innovative monitoring technologies, FLO-CORP delivers dependable performance and peace of mind for all your level management needs.

Level Transmitter Level Switches Level Transmitter and Switch

 

FLO-CORP RANGER ELITE LTRE ULTRASONIC LEVEL TRANSMITTER

Ranger Elite™ LTRE Ultrasonic Level Transmitter (up to 40ft)

The FLO-CORP Ranger Elite™ LTRE Ultrasonic Level Transmitter features a short 8” dead band and up to 40 feet measurement range. The ideal solution for liquid applications, from pump stations to chemical storage. Part Number: LTRE Replaces Part Number: XP88-00
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FLO-CORP RANGER ONE LTRP-1 ULTRASONIC LEVEL TRANSMITTER

Ranger One™ LTRP-1 Ultrasonic Level Transmitter (up to 14ft)

The FLO-CORP Ranger One™ LTRP-1 Ultrasonic Level Transmitter is the ideal solution for position or distance measurement in factory automation settings like web control or heavy equipment. Precision remote monitoring for liquid and solid tank applications, from corn flakes to sawdust. Part Number: LTRP-1
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FLO-CORP Ranger Plus LTRP Ultrasonic Level Transmitter

Ranger Plus™ LTRP Ultrasonic Level Transmitter (up to 35ft)

The FLO-CORP Ranger Plus™ LTRP Ultrasonic Level Transmitter provides non-contact level measurement up to 35 feet and features 3 analog outputs and 2 switches. Precision monitoring for liquid applications, from wastewater to refined chemicals. Part Number: LTRP-10, LTRP-35 Replaces Part Number: DL10-00, DL10-01, DL24-00, DL24-01
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Ranger Two™ LTRP-2 Ultrasonic Level Transmitter (up to 30ft)

Ranger Two™ LTRP-2 Ultrasonic Level Transmitter (up to 30ft)

The FLO-CORP Ranger Two™ LTRP-2 Ultrasonic Level Transmitter (measurement up to 30ft.) is designed for level and distance measurement in remote monitoring and other difficult outdoor applications. Features include a stainless steel housing for rugged indoor or outdoor use, surge protection, and the ability to connect to one sensor up to 32 sensors optimized with RS-485 output to the CONNEX 3D Cellular Monitor.

Part Number: LTRP-2

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Tracer 1000™ 3G LTT1-3G 3rd Generation Radar Level Transmitter (up to 60ft)

Tracer 1000™ 3G LTT1-3G 3rd Generation Radar Level Transmitter (up to 60ft)

The NEW Tracer 1000™ 3G LTT1-3G Guided Wave Radar Level Transmitter features a built-in digital display and a multi-phase interface level with RS485 Modbus output for easy to read, easy to integrate, real-time data in liquids, solids and slurry applications.  Part Number: LTT1-3G Replaces Part Number: LTT1-1
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FLO-CORP TRACER 1000 LTT1 GUIDED WAVE RADAR LEVEL TRANSMITTER

Tracer 1000™ LTT1 Guided Wave Radar Level Transmitter (up to 65ft)

**DISCONTINUED** replacement is: TRACER 1000™ 3G GWR LEVEL TRANSMITTER The FLO-CORP Tracer 1000™ LTT1 Guided Wave Radar Level Transmitter with 1 analog output and 2 switches. It has few installation restrictions, and it measures precisely even with difficult tank geometries or close interfering structures. The ideal solution for anything from stilling wells to food and beverage. Part Number: LTT1-1 is discontinued, Use LTT1-3G for replacement
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FLO-CORP Tracer 1000 LTTI-2G Generation Radar Level Trasmitter

Tracer 1000™ LTT1-2G 2nd Generation Radar Level Transmitter (up to 80ft) – **DISCONTINUED**

**DISCONTINUED** replacement is: TRACER 1000™ 3G GWR LEVEL TRANSMITTER. The FLO-CORP Tracer 1000™ LTT1-2G Guided Wave Radar Level Transmitter features time domain reflectometry (TDR) technology for continuous measurement in liquids, solids and slurries, from asphalt blending tanks to peanuts and paper. Part Numbers: LTT1-2G [DISCONTINUED], Replaced with Part Number: LTT1-3G
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Tracer Air™ 80GHz LTTA-80 Non-Contact Radar Level Transmitter (up to 398ft)

Tracer Air™ 80GHz LTTA-80 Non-Contact Radar Level Transmitter (up to 398ft)

The FLO-CORP Tracer Air™ 80GHz LTTA-80 Radar Level Transmitter is a non-contact solution that’s ideal for difficult applications, such as vapor, steam, and foam. Precision measurement for aggressive, corrosive or non-corrosive liquid level monitoring. Part Number: LTTA-80
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FLO-CORP Tracer Air LLTA Non-Contact Radar Level Transmitter

Tracer Air™ LTTA Non-Contact Radar Level Transmitter (up to 98ft) **DISCONTINUED**

**DISCONTINUED** replacement is: TRACER AIR™ 80GHZ LEVEL TRANSMITTER The FLO-CORP Tracer Air™ LTTA Radar Level Transmitter is a non-contact solution that’s ideal for difficult applications, such as vapor, steam, and foam. Precision measurement for liquid and solids applications, from plastic pellets to bulk tote tanks. Discontinued Part Number: LTTA, Replaced with Part Number: LTTA-80
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80ghz open channel

Tracer Air™ LTTA-OCM 80GHz Open Channel Non-Contact Radar Level Transmitter (up to 398ft)

 The Tracer Air™ 80GHz Open Channel Radar Level Transmitter is accurate, easy to use and cost efficient. Featuring through the air technology, the radar level antenna emits a narrow 6º microwave beam that transmit down the antenna. 

Part Number: LTTA-OCM
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Level Switch LSV1

Vibex™ LSV1 Vibrating Level Switch

The FLO-CORP Vibex™ LSV1 Vibrating Level Switch detects the change in its natural resonant frequency (1.100 Hz) and sends a switching output. Precision monitoring for liquid applications, from lubricating systems to bulk holding tanks. Part Number: LSV1
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Radar Level Measurement Technology

Radar technology sits at the core of many modern industrial-level measurement sensors, offering dependable measurement without contacting the process media. FLO-CORP’s Tracer Air™ Through-Air Radar Level Transmitter utilizes 80 GHz FMCW radar to deliver highly accurate, noncontact measurement for both liquid and solid materials.

Radar-based liquid level sensors excel in environments where traditional technologies struggle. Dust, vapor, pressure changes, and temperature variation have minimal impact on measurement performance. This makes radar an effective solution for applications such as chemical storage, fuel tanks, water and wastewater systems, and bulk material vessels.

Because radar measurement does not rely on physical contact, it minimizes wear and reduces maintenance demands. For operations seeking long-term stability and consistent performance, radar remains one of the most reliable options for continuous level measurement.

Level measurement sensors

Fuel Level Sensors for Backup Generator Systems

Fuel monitoring is one of the most critical applications of liquid level monitoring in industrial and commercial environments. Backup generators must operate reliably after long periods of inactivity, often under emergency conditions. Accurate fuel level measurement ensures readiness, prevents run-dry situations, and supports maintenance planning.

FLO-CORP provides level sensors well suited for generator fuel tanks, including FMCW radar and ultrasonic technologies. These sensors maintain accuracy regardless of changes in fuel composition, density, or quality. Variations caused by fuel blending, seasonal changes, or supplier differences do not affect noncontact radar or ultrasonic measurement performance.

In contrast, contact-based technologies such as floats, capacitance sensors, and mechanical switches can be influenced by changes in liquid properties. For generator applications where reliability is crucial and access is limited, noncontact liquid level sensors offer a more stable and dependable solution.

Continuous Liquid Level Monitoring Solutions

For processes that require real-time visibility, FLO-CORP offers a full range of transmitters designed for continuous measurement. Guided-wave radar and ultrasonic transmitters provide accurate level tracking in tanks, vessels, and sumps used in industrial processing, storage, and treatment applications.

These level measurement sensors perform well in challenging conditions involving viscous, sticky, or corrosive liquids. Guided-wave radar offers reliable measurement when foam, condensation, or turbulence are present, while ultrasonic solutions provide effective noncontact measurement for open tanks and atmospheric vessels.

Continuous liquid level monitoring supports better process control, inventory management, and operational efficiency. With accurate level data, operators can reduce waste, improve throughput, and respond quickly to changing process conditions.

Point-Level Detection and Physical Level Measurement

In addition to continuous measurement, many applications require dependable point-level detection. FLO-CORP supplies vibration, capacitance, and ultrasonic level switches that provide reliable on-off indication for alarms, pump control, and overflow protection.

These industrial-level sensors are commonly used in applications where simple level presence detection is required rather than continuous measurement. Physical level measurement technologies remain effective for many processes, particularly when paired with proper material compatibility and installation practices.

By offering both continuous and point-level solutions, FLO-CORP ensures flexibility across a wide range of operating conditions and measurement needs.

Selecting the Right Level Sensor for Your Application

Choosing the right level measurement sensors depends on several factors, including the type of liquid or material, tank geometry, environmental conditions, and accuracy requirements. FLO-CORP works closely with customers to evaluate these variables and recommend solutions that deliver reliable performance over the long term.

Whether the application involves chemical tanks, fuel storage, wastewater treatment, or industrial processing, FLO-CORP provides proven level sensors backed by technical expertise and application support. From noncontact radar to guided-wave and physical measurement technologies, each solution is selected to align with operational goals and site-specific challenges.

For help selecting the right liquid level sensors or designing a complete monitoring system, contact FLO-CORP to speak with an experienced application specialist.

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FAQs About Level Measurement Sensors

What are level measurement sensors used for?

Level measurement sensors are used to determine the amount of material inside tanks, vessels, and containers. They support critical functions such as inventory tracking, process control, safety monitoring, and regulatory compliance. In industrial environments, these sensors are most commonly used for liquid level monitoring in fuel storage, chemical processing, water treatment, and manufacturing applications.

What types of level sensors are best for industrial applications?

The best industrial-level sensors depend on the material being measured and the operating conditions. Radar and guided-wave radar sensors are often preferred for continuous measurement due to their accuracy and reliability. Ultrasonic sensors work well in open or atmospheric tanks, while vibration, capacitance, and float-based devices are commonly used for point-level detection.

Are noncontact liquid level sensors more reliable than contact sensors?

Accuracy in liquid level monitoring depends on sensor technology, installation, and process conditions. Factors such as temperature, pressure, vapor, foam, and tank geometry can influence performance. Radar-based level measurement sensors are typically less affected by these variables, making them a strong choice for demanding applications.

How do I choose the right level sensor for my application?

Selecting the right level sensors requires evaluating the type of material, tank design, environmental conditions, and accuracy requirements. Working with an experienced instrumentation provider helps ensure the selected solution delivers reliable performance, long service life, and consistent measurement results.

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