Proximity Sensors | Ultrasonic & Infrared | RS
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    Proximity Sensors

    What is a proximity sensor? A proximity sensor is a non-contact component designed to detect the presence or absence of an object without physical contact. It offers a valuable solution for working with delicate or unstable objects. Proximity sensors have key features and benefits, including motion detection of metallic and non-metallic objects, wide temperature range (-50°C to 100°C), high-speed motion sensing without contact, usability in applications with oil or water, and quicker response times compared to contactors. You can find out more on our useful guide to proximity sensors.

    There are various types of proximity sensors suitable for different applications. They operate based on a universal working principle and transmit data about object presence or motion via an electrical signal when the object is within the sensor's range. Here are some common types:

    • Infrared Sensors (IR Sensor): Infrared sensors consist of passive infrared sensors (PIR) and active infrared sensors. PIR sensors utilize pyroelectric infrared sensors in a magnetic lens, which detect changes in the signal between them. Active IR sensors employ an IR LED that emits an infrared beam to an infrared receiver, detecting obstacles that block the infrared radiation.
    • Inductive Proximity Sensors: Inductive proximity sensors generate an electromagnetic field through an oscillating circuit. Any ferrous metal object, including aluminium, copper, brass, and iron, triggers a change in the oscillation, indicating its presence.
    • Capacitive Proximity Sensors: Capacitive sensors can detect various shapes and materials, even through non-metallic walls. They are suitable for use with non-ferrous materials and find applications in close-range tasks like level detection and monitoring.
    • Ultrasonic Proximity Sensors: Ultrasonic sensors emit and receive high-frequency sound waves that can be reflected or absorbed by objects within their range. These sensors are ideal for high-speed and long-distance measurements, such as wind speed, fluid level, and speed through air or water.
    • Magnetic Proximity Sensors: Magnetic proximity sensors measure the presence or absence of an object using an external magnetic field. The sensor's reed switch is operated by a magnet, activating the sensor when the reed switch is turned ON.

    Proximity sensors are widely used in various industries and applications. They find application in automation systems, robotics, industrial manufacturing, security systems, mobile devices, and more. Proximity sensors enhance safety, efficiency, and accuracy in processes involving object detection, motion sensing, level monitoring, and presence verification.

    7160 Products showing for Proximity Sensors

    Pepperl + Fuchs
    Threaded Barrel
    Inductive
    M18
    5 mm
    -
    -
    2-Wire
    NO
    -
    M12
    -
    IP67
    -
    20 → 265 V ac, 20 → 320 V dc
    -
    69mm
    490 Hz
    -
    -
    320V
    Flush Mount
    Nickel Plated Brass
    265V
    -
    300 mA
    -
    +85°C
    490Hz
    -25°C
    Shielded
    Festo
    Threaded Barrel
    Inductive
    M30
    10 mm
    -
    -
    -
    -
    -
    -
    -
    IP67
    SIED
    20 →320 V
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    ifm electronic
    Block
    Inductive
    -
    35 mm
    -
    -
    PNP
    NO
    -
    M12
    -
    IP67
    -
    10 → 36 V dc
    -
    54mm
    80 Hz
    40mm
    40mm
    36V
    Non Flush
    Polyamide
    -
    -
    200 mA
    -
    +70°C
    80Hz
    -25°C
    Unshielded
    ifm electronic
    Threaded Barrel
    Inductive
    M12
    2 mm
    -
    -
    PNP
    NO
    -
    M12
    -
    IP67
    IF7
    10 → 30 V dc
    -
    60mm
    800 Hz
    -
    -
    -
    Flush
    -
    -
    -
    100 mA
    -
    -
    -
    -
    Shielded
    Pepperl + Fuchs
    Threaded Barrel
    Inductive
    M12
    4 mm
    -
    -
    NPN
    NO
    2m
    Pre-Cabled
    -
    IP68
    -
    5 → 36 V dc
    -
    40mm
    2.65 kHz
    -
    12mm
    36V
    Non-Flush
    Brass, White Bronze Coated
    -
    -
    200 mA
    -
    +85°C
    2.65kHz
    -40°C
    Unshielded
    Pepperl + Fuchs
    Block
    Inductive
    -
    40 mm
    -
    -
    2-Wire
    NO/NC
    -
    Screw Terminal
    -
    IP67
    -
    20 → 253 V ac, 20 → 300 V dc
    -
    118mm
    100 Hz
    40mm
    40mm
    300V
    Non-Flush
    Metal, Nylon 66
    253V
    -
    500 mA
    -
    +85°C
    100Hz
    -25°C
    Unshielded
    Allen Bradley
    Threaded Barrel
    Inductive
    M12
    3 mm
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Carlo Gavazzi
    Smooth Barrel
    Capacitive
    -
    12 mm
    -
    -
    Relay
    NO+NC
    2m
    Pre-Cabled
    -
    IP67
    -
    230 V ac
    -
    102mm
    50 Hz
    -
    -
    265V
    Non-Flush
    -
    -
    -
    -
    -
    +70°C
    50Hz
    -20°C
    Unshielded
    SICK
    Threaded Barrel
    Capacitive
    M30
    25 mm
    -
    -
    NPN
    NO+NC
    -
    M12
    -
    IP68
    CM
    10 → 30 V dc
    -
    81mm
    50 Hz
    -
    -
    30V
    Non-Flush
    Plastic
    -
    -
    200 mA
    -
    +85°C
    50Hz
    -30°C
    Unshielded
    Pepperl + Fuchs
    Slot
    Inductive
    -
    15 mm
    -
    -
    NPN
    NO
    2m
    Pre-Cabled
    -
    IP67
    -
    20 → 253 V ac
    -
    60mm
    25 Hz
    48mm
    30mm
    -
    -
    PBT
    253V
    -
    500 mA
    -
    +70°C
    25Hz
    -25°C
    -
    Omron
    Threaded Barrel
    Inductive
    M8
    2 mm
    -
    -
    PNP
    NO
    -
    M8
    -
    IP67
    E2A
    12 → 24 V dc
    -
    49mm
    1.5 kHz
    -
    -
    32V
    Flush
    Stainless Steel
    -
    -
    200 mA
    -
    +70°C
    1.5kHz
    -40°C
    Shielded
    Omron
    Threaded Barrel
    Inductive
    M8
    1 mm
    -
    -
    PNP
    NO
    -
    M12
    -
    IP67, IP67G, IP69K
    E2E
    10 → 30 V dc
    -
    43mm
    2 kHz
    -
    -
    30V
    Flush
    -
    -
    -
    200 mA
    -
    +80°C
    2kHz
    -40°C
    Shielded
    Carlo Gavazzi
    Threaded Barrel
    Inductive
    M12
    4 mm
    -
    -
    NPN
    NO
    -
    M12
    -
    IP67
    ICB12
    10 → 36 V dc
    -
    50.2mm
    2 kHz
    -
    -
    36V
    Flush
    -
    -
    -
    200 mA
    -
    +70°C
    2kHz
    -25°C
    Shielded
    SICK
    Threaded Barrel
    Ultrasonic
    M12
    150 mm
    -
    4-20 mA
    -
    -
    -
    M12
    -
    IP65, IP67
    UM12
    10 → 30 V dc
    -
    60.1mm
    -
    12mm
    -
    30V
    -
    Metal
    -
    -
    -
    -
    +70°C
    -
    -25°C
    -
    Pepperl + Fuchs
    Threaded Barrel
    Inductive
    M30
    10 mm
    -
    -
    NPN
    NO
    2m
    Pre-Cabled
    -
    IP67
    -
    10 → 30 V dc
    -
    50mm
    1.1 kHz
    -
    30mm
    36V
    Flush Mount
    Nickel Plated Brass
    -
    -
    200 mA
    -
    +85°C
    1.1kHz
    -40°C
    Shielded
    Telemecanique Sensors
    Threaded Barrel
    Inductive
    M8
    2.5 mm
    -
    -
    NPN
    NO
    2m
    Pre-Cabled
    -
    IP65, IP67
    XS
    12 → 24 V dc
    -
    33mm
    2.5 kHz
    8mm
    -
    24V
    Flush
    Metal
    -
    -
    200 mA
    -
    +70°C
    2.5kHz
    -25°C
    Shielded
    Omron
    Threaded Barrel
    Inductive
    M12
    4 mm
    -
    -
    PNP
    NC
    2m
    Pre-Cabled
    -
    IP67
    E2B
    12 → 24 V dc
    -
    30mm
    1 kHz
    -
    -
    30V
    Flush
    Brass
    -
    -
    200 mA
    -
    +70°C
    1kHz
    -25°C
    Shielded
    Turck
    Threaded Barrel
    Inductive
    M8
    6 mm
    -
    -
    PNP
    NO
    -
    M12
    -
    IP68
    NI 6U
    10 → 30 V dc
    -
    57mm
    1 kHz
    -
    -
    30V
    Non Flush
    Metal
    -
    -
    150 mA
    -
    +85°C
    1kHz
    -30°C
    Unshielded
    SICK
    Threaded Barrel
    Inductive
    M18
    8 mm
    -
    -
    NPN
    NO
    2m
    Pre-Cabled
    -
    IP67
    IME12
    10 → 30 V dc
    -
    67mm
    1 kHz
    18mm
    -
    30V
    Flush Mount
    Nickel Plated Brass
    -
    -
    200 mA
    -
    +75°C
    1kHz
    -25°C
    Shielded
    ifm electronic
    Threaded Barrel
    Inductive
    M30
    10 mm
    -
    -
    PNP
    NO
    2m
    Pre-Cabled
    -
    IP65, IP67
    -
    10 → 36 V dc
    -
    80mm
    -
    -
    -
    36V
    Flush
    Polyamide, TPE-U
    -
    -
    250 mA
    -
    +80°C
    -
    -25°C
    Shielded
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