What is a Liquid Level Sensor? Level Switch Types
Reliable Level Measurement for Tanks, Vessels, and Process Systems
A liquid level sensor is a device used to detect, monitor, or control the amount of liquid inside a tank, container, sump, or process vessel. Whether you need simple high/low point detection or continuous level measurement, the right sensor helps prevent overfills, dry-running pumps, product loss, and unplanned downtime.
Our liquid level sensing solutions are designed for industrial, commercial, and OEM applications where accurate tank monitoring matters. From water and wastewater to oils, chemicals, coolants, and process liquids, we help you choose a dependable tank level sensor that fits your environment, media, and control requirements.
Choose the Right Level Switch Type
Different applications require different sensing technologies. The best option depends on the liquid, tank material, mounting locati0n, temperature, pressure, and whether you need point-level detection or continuous measurement.
Common level switch and sensor types include:
Float level switches for simple, cost-effective high or low liquid detection
Conductive level sensors for electrically conductive liquids such as water-based fluids
Capacitive level sensors for detecting liquids through probes or non-metallic tank walls
Ultrasonic level sensors for non-contact level measurement in tanks and sumps
Pressure-based tank level sensors for continuous monitoring based on hydrostatic pressure
Optical level switches for compact point-level detection in clean liquids
Radar level sensors for challenging applications requiring non-contact performance
Not sure which technology is right for your system? Our team can help match the sensor type to your liquid, tank design, and control setup.
Built for Practical Performance
A dependable liquid level sensor should do more than detect liquid. It should integrate easily, operate reliably, and support your process goals.
Key benefits include:
Helps prevent tank overfill and product waste
Protects pumps from running dry
Supports automated filling, draining, and alarm systems
Improves process visibility and operational control
Reduces manual tank checks
Available for point-level switching or continuous level measurement
Suitable for a wide range of tank sizes and liquid types
Product Options and Specifications
Because every application is different, sensor specifications vary by model and configuration. Available options may include:
Side, top, or bottom mounting styles
Vertical or horizontal installation
Stainless steel, plastic, or chemically compatible wetted materials
Normally open or normally closed switch outputs
Analog outputs for continuous level measurement
Compact designs for OEM equipment
Industrial housings for demanding environments
Options for water, oils, coolants, chemicals, and other liquids
For best performance, confirm liquid compatibility, operating temperature, tank material, mounting orientation, electrical output, and required detection range before selecting a sensor.
Simple Pricing and Application Support
Pricing depends on the sensor technology, materials, output type, mounting configuration, and order quantity. Instead of pushing a one-size-fits-all product, we help you identify the right liquid level sensor for your specific application.
Request a quote to receive product recommendations, availability, and pricing based on your tank, liquid, and control requirements.
Need a Tank Level Sensor?
If you need reliable level measurement or a level switch for your tank system, we're ready to help. Share your application details, and we'll recommend a sensor solution built around your performance needs, budget, and installation requirements.
Contact us today to request a quote or get help choosing the right liquid level sensor.
