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### What are Level Sensors?

Level sensors monitor, maintain, and measure liquid levels to determine how full or how empty a container, tank or silo is. Level sensors provide an output electrical signal at predetermined levels to communicate when to open or close control valves. You can find out more in our comprehensive [level sensors guide](/web/content/discovery/ideas-and-advice/level-sensors-guide).

### Level Sensor Types

The choice of sensors is usually determined by which substance is being measured, the environment in which the sensor is to be used and in which position the sensor needs to be mounted. Also, the application will determine the measurement principle used, such as capacitive, guided wave radar or hydrostatic level measurement. The most common types of level sensors are:

**Capacitive level switches**

- Capacitive level switches provide a basic full/empty level indication determined by the mounting position of the sensor. This type of switch is non-contact and uses a sensing field to determine liquid levels. Capacitive sensors provide accurate switching even with heavy residue build-up.

**Vibrating level probes**

- Vibrating level probes use a rod or a fork that constantly produce high-frequency vibrations. When the vibrating probe comes into contact with the medium, the vibration changes and the vibrating level switch outputs a switching command. Vibrating level switches are used as overfill protection devices or low-level indicators in liquids as well as in granular and powder bulk solids.

**Conductive level switches**

- Conductive level switches are sensors that use stainless steel probes with an electrical contact output to measure a specific liquid level. Used in conjunction with a level control relay to set and monitor each probe. Applications include ponds, reservoirs, sumps, pharmaceuticals, closed vessels and open tanks.

**Ultrasonic level sensors**

- Ultrasonic level sensors generate ultrasonic sound pulses that are reflected by the surface of a liquid medium. The time travelled by the ultrasonic pulse is calculated by the sensor which then determines the distance of the liquid to give an accurate fill level. The ultrasonic sensor's response is influenced by turbulence, pressure, moisture, and temperature.

### **Applications of Level Sensors**

Common applications of Water & Oil Level Sensors include:

- Manufacturing
- Automotive Industry
- Water Treatment
- Pharmaceutical Processes
- Power Generating Plants

Browse the broad range of Level Sensors RS Group has to offer and order today for next day delivery.



Shop our range of Level Sensors supplies, also known as Water Level Sensors or Oil Level Sensors. Next day delivery on all Level Sensor offers.

Level Sensors | Water & Oil Level Sensors | RS Components

Level Sensors

Flowline EchoPod Series Ultrasonic Level Sensor Ultrasonic Level...

Sick UP56 Series Ultrasonic Level Sensor Ultrasonic Level Sensor...

RS PRO Ultrasonic Level Sensor Threaded, PPS Body

Flowline EchoSonic Series Ultrasonic Level Transmitter Ultrasonic...

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Ultrasonic Level Sensors | RS

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Capacitance Level Sensors | RS

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Atmi Level Sensors | RS Components

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Cynergy3 Optical Level Sensor | RS

The Cynergy3 Optical Level Sensors boast a compact and robust design, allowing for easy installation and integration into existing systems. Their high-quality construction ensures durability and longevity, even in harsh environments. Additionally, they provide reliable and real-time data, facilitating efficient process control and monitoring.Designed to meet the most demanding industrial applications, these innovative sensors combine advanced technology with exceptional performance for accurate and reliable liquid level detection. They utilize a non-contact approach, eliminating the need for physical contact with the fluid, ensuring cleanliness and preventing any contamination. These sensors can detect a wide range of liquids, including corrosive and viscous substances, making them versatile for various industries. With their optical sensing mechanisms, the Cynergy3 Optical Level Sensors offer unparalleled precision in liquid level measurement.

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Cynergy3 Pressure Level Sensors | RS

Designed for a wide range of industrial applications, these innovative level sensors from Cynergy3 deliver unparalleled accuracy and reliability. Using advanced technology and robust construction, they are the ideal solution for monitoring pressure levels with exceptional precision.The Cynergy3 Pressure Level Sensor is specifically engineered to meet the demands of pressure-type level sensing. Whether you operate in the oil and gas industry, chemical processing plants, or water management systems, this sensor provides reliable and accurate measurements. Its high-resolution capabilities and minimal deviation ensure that you have access to real-time data for making informed decisions.The Cynergy3 Pressure Level Sensors offer multiple output options, compatibility with various industrial protocols, and flexible power supply requirements for seamless integration. Their compact design facilitates easy installation, saving you time and effort. With adjustable response times and calibration options these level sensors allow you to tailor performance to suit any specific needs.

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Turck Level Sensors | RS

Turck Level Sensors are exemplary devices designed to deliver unparalleled accuracy in monitoring fluid levels. Renowned for their cutting-edge technology, these sensors provide reliable and efficient solutions across diverse industrial applications. With a focus on functionality and reliability, Turck Level Sensors stand as a beacon of innovation, ensuring precise and dependable measurement of liquid levels. Elevate your operational efficiency with these state-of-the-art sensors, crafted to meet the exacting demands of modern industries. Trust in Turck for a seamless integration of advanced technology and dependable performance in fluid level monitoring.

Ultrasonic Level Sensors

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