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    Picture of Capacitance Probe Level Sensor for Liquid/Powder Picture of Capacitance Probe Level Sensor for Liquid/Powder Picture of Capacitance Probe Level Sensor for Liquid/Powder

    Capacitance Probe Level Sensor for Liquid/Powder

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    SKU: SUCH-CLS-12NPFL
    $95.29
    ● Capacitance probe level sensor for liquids and powders ● NPN+PNP output, 12-24V DC supply, 20ms response ● Adjustable sensitivity for glue, oil, ink and powder detection ● 316L stainless steel housing, PEEK probe, IP65 protection
    🚚 Free shipping
    🕒 Delivery date: 6-12 days
    🔁 30-day Returns
    Overview

    This capacitance probe level sensor is a contact-type capacitive level switch for liquid and powder detection. It provides fast 20ms response, NPN+PNP output, adjustable sensitivity, IP65 protection, and a 316L stainless steel housing with PEEK probe for reliable point level control. Suitable for glue, lubricating oil, ink, engine oil, powder hoppers, storage tanks, and industrial automation systems.

    Feature

    • Wide media compatibility: Based on contact capacitance sensing technology, the sensor reliably detects both high- and low-viscosity, low-corrosive liquids such as glue, lubricating oil, and ink. It adapts to diverse industrial liquid monitoring applications without the need for frequent sensor replacement.
    • Robust and durable design: SUCH capacitive liquid level sensor features a 316L stainless steel housing combined with a PEEK probe, supporting a pressure range of 0-0.4 MPa and an IP65 protection rating. Stable operation is ensured across a temperature range of -25 ℃ to 70 ℃, even in harsh environments with moisture and dust.
    • Fast and accurate level detection: With a 20 ms response time and 50Hz switching frequency, the capacitive type level transmitter captures liquid level changes in real time. Sensitivity can be precisely adjusted via a multi-turn potentiometer to match different liquid properties and improve detection accuracy.
    • Low maintenance and high reliability:  The capacitive level sensor operates on a 12-24 VDC wide-voltage power supply and integrates reverse polarity and overcurrent protection to minimize failure risks. A 4-core 2-meter PVC cable allows easy installation, while dual-color indicator LEDs provide clear and intuitive status indication.

    Dimension (Unit: mm)

    Capacitance probe level sensor dimension

    Installation Diagram

    Side install

    Capacitance probe level sensor side installation diagram

    Top/Bottom install

    Capacitance probe level sensor top/bottom installation diagram

    High/Low liquid level install

    Capacitance probe level sensor high/low liquid level installation-diagram

    Note: The sleeve needs to be configured by the customer.

    Wiring Diagram

    Capacitance probe level sensor wiring diagram

    Specs
    Detection Principle Contact Capacitance Detection
    Output Mode NPN+PNP
    Application Glue, lubricating oil, ink (high viscosity, low corrosion materials)
    Detection Distance Contact Detection
    Withstand Voltage 0-0.4Mpa
    Power Supply Voltage 12-24VDC
    Sensitivity Multi-turn Potentiometer Adjustment
    Response Time 20ms
    Switching Frequency 50HZ
    Indicator Light Red: Power Indicator; Green: Output Indicator
    Working Power <0.5W
    Maximum Output Current 100mA
    Residual Voltage <1.5VDC (at 100mA load current, 2m wire)
    Internal Protection Reverse Polarity Protection, Overcurrent Protection
    Housing Material PEEK+316L Stainless Steel
    Ambient Temperature -25℃~70℃
    Protection Grade IP65
    Dimension M12*75mm
    Weight 200g
    Connection Method 4-core 2m PVC Lead Wire
    Application
    Capacitive probe level-sensor for engine oil

    Engine Oil

    Capacitance probe level-sensor for glue

    Glue

    Capacitance probe level-sensor for powder

    Powder

    FAQ
    ❯

    Yes, capacitive level sensors can measure both conductive and non-conductive liquids. Unlike electrode-type level switches, capacitive sensors do not rely on the conductivity of the medium, but rather determine the liquid level through changes in dielectric constant. Therefore, they can maintain good detection performance when measuring non-conductive or weakly conductive media such as oils, pure water, and alcohol.

    ❯

    In metal containers, the container wall usually acts as a reference electrode, resulting in more stable measurements; while in non-metal containers such as plastic and glass, an external reference electrode or a specially designed capacitive probe is required. When selecting a sensor, the container material should be clearly specified to ensure that the sensor's working principle functions correctly.

    ❯

    Capacitive probe level sensors are more commonly used for point level detection, such as high-level, low-level alarms, or overflow protection. Although some models can achieve approximate continuous measurement, for high-precision continuous liquid level measurement applications, ultrasonic, radar, or hydrostatic level gauges are usually recommended.

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