Level Sensors | Water & Oil Level Detection Sensors - RS HK
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    Level Sensors

    Level sensors, also known as liquid level probes, are devices that monitor and measure fluid levels in containers, tanks, or silos. They generate an output electrical signal at predetermined levels to control the opening or closing of valves.

    Types of Level Sensors

    Level sensors are selected based on factors such as the substance being measured, the operating environment, mounting requirements, and the specific needs of the application. These factors dictate the measurement technique employed, including capacitive, guided wave radar, or hydrostatic methods. Here’s a breakdown of the most common types of level sensors:

    Capacitive level switches

    Capacitive level switches operate without contact, utilising a sensing field to detect water levels. These switches are positioned to provide basic full or empty indications and are effective even with significant residue buildup.

    Vibrating Level Probes

    Vibrating level probes employ a continuously vibrating rod or fork to detect level changes. When these probes make contact with a medium, their vibration alters, triggering a switch. This technology is commonly used for overfill protection and low-level indication in both liquids and granular or powdery solids.

    Conductive Level Switches

    Conductive level switches use stainless steel probes that make electrical contact to measure specific liquid levels. They work alongside level control relays to monitor and adjust the position of each probe, suitable for various applications from ponds to pharmaceutical vessels.

    Ultrasonic Level Switches

    Ultrasonic level sensors emit sound pulses that reflect off the liquid surface. The sensor calculates the time it takes for these pulses to return, accurately determining the liquid's distance and thus its level. Factors like turbulence, pressure, moisture, and temperature can affect the readings of ultrasonic sensors.

    Level Sensors Applications

    Level sensors are crucial in numerous industries due to their ability to monitor and control liquid levels accurately, impacting various processes from manufacturing to automotive functionality. Here's how they are applied across different sectors:

    • Manufacturing – Level sensors ensure accurate ingredient balances and safe storage in chemical and food processing industries.
    • Automotive Industry – Level detection sensors monitor crucial fluid levels in vehicles, such as brake fluid and engine oil, preventing failures and damage.
    • Water Treatment – These level detectors manage treatment volumes and effectiveness in water tanks as well as treatment facilities.
    • Pharmaceutical Processes – In pharmaceutical production, level sensors maintain strict liquid levels for compliance and batch quality.
    • Power Generating Plants – Power plants use level meters to monitor liquids like cooling water and lubricants, ensuring machinery operates smoothly.

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

    How to Choose the Right Level Sensor for Your Needs

    Selecting the right level sensor requires careful consideration of various factors to ensure it meets specific application needs. Start by defining the primary purpose of the measurement, such as visual indication, alarm initiation, or continuous monitoring.

    Consider the characteristics of the service medium, including its type (liquid, slurry, granular), corrosiveness, and physical properties like density and viscosity. The selection of material for the sensor's wetted parts should align with the chemical compatibility and physical demands of the medium. Additionally, assess the operating conditions such as temperature, pressure, and whether the installation environment is hazardous.

    The mounting orientation of the sensor and the required accuracy are also crucial. As a reputable water level sensor supplier, RS offers a broad range of quality level sensors from leading brands. These sensors are designed to integrate seamlessly with modern digital control systems and meet rigorous industrial standards, ensuring reliability and accuracy in any application.

    How to Order Level Sensors from RS?

    Ordering level sensors from RS is straightforward and ensures access to high-quality solutions tailored to a wide range of industrial, commercial, and project needs. Our catalogue features an extensive selection from trusted brands including RS PRO , Siemens, Sick, and Gems Sensors, catering to diverse requirements. You can conveniently place your order online for efficient delivery, or contact us by phone for assistance with bulk orders. RS guarantees a smooth purchasing process, providing you with reliable level sensors that meet stringent quality standards. Sick, and Gems Sensors, catering to diverse requirements. You can conveniently place your order online for efficient delivery, or contact us by phone for assistance with bulk orders. RS guarantees a smooth purchasing process, providing you with reliable level sensors that meet stringent quality standards.

    How Delivery Works at RS Hong Kong

    At RS Hong Kong, we ensure that your orders for level sensors are processed quickly and efficiently. Whether you need standard of expedited shipping, you can be sure that your orders will arrive on-time when you need them. For additional information on our delivery services, please visit our delivery information page.

    1419 Products showing for Level Sensors

    Endress+Hauser
    Vibronic
    Flush Mount
    PNP
    Stainless Steel 316L
    5m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
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    Liquiphant FTL31
    Banner
    Radar
    Barrel M30
    NPN/PNP, Analog 4-20mA
    PBT
    -
    IO-LINK
    -40°C
    +65°C
    -
    30V dc
    M30
    -
    -
    -
    -
    -
    -
    -
    T30R
    ifm electronic
    Sensor
    -
    PNP
    PP-GF30, TPE-U
    -
    -
    -
    -
    -
    -
    -
    -
    -
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    -
    -
    -
    -
    LI
    Endress+Hauser
    Capacitive
    Wall Mount
    PNP
    PBT-FR
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    FTC260
    ifm electronic
    Sensor
    -
    PNP
    Stainless Steel
    -
    IO-LINK
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
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    LMC
    Carlo Gavazzi
    -
    Non-Flush
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
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    Endress+Hauser
    Conductive
    Threaded Mount
    PNP
    PBT-FR
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    FTW32
    Banner
    Radar
    Barrel M30
    2x NPN/PNP
    PBT
    -
    IO-LINK
    -40°C
    +65°C
    -
    30V dc
    M30
    -
    -
    -
    -
    -
    -
    -
    T30R
    Carlo Gavazzi
    Level Probe
    Threaded
    -
    Stainless Steel
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    VNY
    SICK
    TDR Level Sensor
    Threaded
    PNP
    Stainless Steel
    67mm
    -
    -40°C
    +100°C
    -
    35V
    M12
    -
    64bar
    NPT 3/4
    -
    -
    -
    -
    LFV200
    Carlo Gavazzi
    Level Sensor
    Threaded
    SCR
    Plastic
    2m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    VP
    Gems Sensors
    Level Switch
    Vertical
    SPST NC
    Stainless Steel
    1.8m
    -
    -40°C
    +60°C
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    LS-270
    Carlo Gavazzi
    Level Probe
    Threaded
    -
    Stainless Steel
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    VNY
    Rosemount
    Fork Level Detector
    Side or Top Mount
    Relay
    Aluminium
    -
    -
    -70°C
    +260°C
    -
    -
    -
    -
    100bar
    -
    Non Asbestos Carbon Fibre
    -
    -
    ATEX
    2160
    Delta-Mobrey
    Liquid Level Switch
    Top Mount
    SPST
    Aluminium Bronze
    -
    -
    -
    +210°C
    -
    -
    -
    2 A dc, 5 A ac
    18bar
    -
    Non Asbestos Sheet
    -
    -
    -
    -
    ifm electronic
    Sensor
    -
    PNP
    Diecast Zinc
    -
    IO-LINK
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    O1D Series
    ifm electronic
    Capacitive
    -
    NPN, PNP
    PBT, PC
    100mm
    IO-LINK
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    KQ
    Endress+Hauser
    Vibronic
    Flush Mount
    PNP
    Stainless Steel 316L
    5m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    FTL31
    Siemens
    Radar Level Transmitter
    -
    -
    EEO
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
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    SITRANS LR560
    Rosemount
    Fork Level Switch
    Side or Top Mount
    Direct Load
    Aluminium
    -
    -
    -40°C
    +150°C
    -
    -
    -
    500 mA
    100bar
    -
    Non Asbestos Sheet
    -
    -
    ATEX
    2120
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