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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.

    1509 產品顯示為 Level Sensors

    HK$11,805.80
    Endress+Hauser
    Compact Pressure Sensor
    Universal Adapter
    -
    Stainless Steel
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    Deltapilot FMB50
    HK$3,243.90
    Endress+Hauser
    Point Level
    Threaded Mount
    Binary
    Polycarbonate
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    Soliswitch FTE20
    HK$6,498.90
    Endress+Hauser
    Vibronic
    Threaded Mount
    PNP
    PTB-FR
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX, IECEx
    Soliphant T FTM20
    HK$5,607.84
    Flowline
    Controller, Ultrasonic Level Switch
    Vertical
    -
    Polycarbonate
    1.2m
    -
    -35°C
    +60°C
    24V
    24V
    -
    -
    30psi
    -
    Viton
    -
    -
    -
    EchoPod
    HK$8,447.80
    Endress+Hauser
    Radar Level Sensor
    Threaded Mount
    4-20mA
    PVDF
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    FMR30B
    HK$7,918.80
    Endress+Hauser
    Radar Level Sensor
    Threaded Mount
    4-20mA
    PVDF
    10m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    FMR20B
    HK$2,507.60
    ifm electronic
    Capacitive
    -
    NPN, PNP
    PBT, PC
    100mm
    IO-LINK
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    KQ
    HK$579.10
    SSt Sensing Limited
    Liquid Level Switch
    Threaded Mount
    PNP
    Polysulfone
    -
    -
    -40°C
    +125°C
    -
    30V
    -
    7.5 mA
    7bar
    -
    -
    -
    -
    -
    OPTOMAX LLC610
    HK$4,416.10
    Endress+Hauser
    Capacitance
    Flush Mount
    PNP
    Stainless Steel 316L
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Liquipoint FTW33
    • RS庫存編號 901-0292
    • 製造零件編號 FX82.IXXTBFHXKMXX
    HK$18,134.10
    Vega
    TDR Sensor
    Cable
    HART
    Stainless Steel
    75m
    -
    -40°C
    +80°C
    253V
    48V
    -
    20 mA
    40bar
    -
    EPDM Rubber, FFKM, FKM
    -
    -
    -
    VEGAFLEX 82
    HK$10,117.10
    Endress+Hauser
    Ultrasonic Level Measurement
    Flange Mount
    -
    PVDF
    20m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ATEX
    Prosonic M FMU40 Series
    HK$3,337.70
    Siemens
    Capacitance Point Level Switch
    Threaded
    4-20mA
    Fully Synthetic PPS
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Pointek CLS
    HK$12,100.00
    SICK
    Ultrasonic Level Sensor
    G1 Thread, Vertical
    -
    Stainless Steel
    -
    -
    -25°C
    +70°C
    -
    30V
    -
    200 mA
    6bar
    -
    FKM
    1.3m
    -
    -
    UP56
    HK$8,489.70
    Siemens
    Vibrating Level Switch
    Threaded
    -
    Aluminium
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    SITRANS LVL
    • RS庫存編號 232-1031
    • 製造零件編號 LRS510-10-34-2UPN8-H1141
    HK$14,107.97
    Turck
    Radar
    -
    -
    Stainless Steel
    10m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    LRS510
    • RS庫存編號 201-0773
    • 製造零件編號 VRY2A
    HK$1,014.22
    Carlo Gavazzi
    -
    Non-Flush
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    毎盒:50 个
    HK$20,467.97
    Tempatron
    Liquid Level Sensor
    PCB mount
    FET
    ABS Plastic
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    SLX
    HK$2,414.90
    Vega
    Impedance Switch
    1" G/BSP Thread
    PNP
    Stainless Steel
    -
    IO-LINK
    -40°C
    +115°C
    -
    35V
    -
    -
    25bar
    -
    Klingersil
    -
    Liquids
    -
    VEGAPOINT 21
    • RS庫存編號 232-1048
    • 製造零件編號 LUS211-130-51-2UPN8-H1141
    HK$5,423.40
    Turck
    Ultrasonic
    -
    -
    Stainless Steel
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    LUS211
    HK$6,167.52
    WIKA
    Level Sensor
    Cable Mount
    4-20mA
    Stainless Steel
    15m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    LS-10
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