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    Picture of 3-Wire Hall Effect Speed Sensor with Square Wave Output Picture of 3-Wire Hall Effect Speed Sensor with Square Wave Output Picture of 3-Wire Hall Effect Speed Sensor with Square Wave Output Picture of 3-Wire Hall Effect Speed Sensor with Square Wave Output

    3-Wire Hall Effect Speed Sensor with Square Wave Output

    1 review(s) | Add your review
    SKU: SUCH-SS-KY
    $127.54
    ● Output signal square wave ● Operating voltage 8–32V DC ● Frequency range 0–20,000Hz ● Sensing distance ≤2mm
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    🕒 Delivery date: 6-12 days
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    Overview

    The SUCH 3-wire hall effect speed sensor detects rotating gear teeth and converts each tooth pass into a square wave pulse, generating a frequency signal proportional to rotational speed. With IP65 protection and an operating temperature range of -40°C to 85°C, it provides digital output with a 47±5% duty cycle across a frequency range of 0-20000Hz. It is commonly installed on flywheel housings, gearboxes, and hydraulic motors to provide speed signals for pulse-type speedometers, tachometers, and RPM monitoring systems.

    Feature

    • Outputs a 3-wire square wave across a 0-20000Hz frequency range, compatible with pulse-type speedometers, tachometers, and RPM monitoring systems.
    • Operates on 8-32V DC, supporting standard 12V and 24V power systems used in industrial and vehicle applications.
    • Senses gear teeth at a distance of up to 2mm, defining the installation gap required for proper mounting.
    • Produces a high signal above 10V and a low signal below 0.7V with a 47±5% duty cycle, giving connected controllers clear voltage thresholds to distinguish signal states.
    • Carries an IP65 rating, protecting against dust ingress and water jets in outdoor and exposed installation locations.
    • Rated for continuous operation from -40°C to 85°C, suited to engine and machinery temperature conditions.
    • Connects via three color-coded wires — red for power, blue for ground, and black for signal output — for straightforward installation.

    Dimension

    3-wire hall effect speed sensor structure diagram showing component layoutFig1: Structure Diagram

    3-wire hall effect speed sensor M18×1.5 thread dimension drawingFig2: M18×1.5 Thread Dimensions

    3-wire hall effect speed sensor M16×1.5 thread dimension drawingFig3: M16×1.5 Thread Dimensions

    Specs
    Output Signal Square wave
    Frequency Range 0–20,000Hz
    Duty Cycle 47±5%
    Output High Level >10V
    Output Low Level <0.7V
    Operating Voltage 8–32V DC
    Operating Current <50mA
    Sensing Distance ≤2mm
    Connection Type 3-wire connection
    Wiring Red: power supply (+)
    Blue: ground (-)
    Black: signal output
    Operating Temperature -40°C to +85°C
    Protection Rating IP65
    Installation Installed on the flywheel housing with the sensing face perpendicular to the gear tooth surface. The sensing gap between the sensor and gear tooth should be ≤2mm.
    Customization Housing shape, material, and thread specifications can be customized according to application requirements.
    Application
    3-wire hall effect speed sensor installed for engine speed monitoring

    Engine Speed Monitoring

    3-wire hall effect speed sensor used for gearbox speed measurement

    Gearbox Speed Measurement

    3-wire hall effect speed sensor mounted for hydraulic motor monitoring

    Hydraulic Motor Monitoring

    FAQ
     ❯

    A 3-wire Hall effect speed sensor detects changes in the magnetic field as gear teeth pass the sensing element and converts each tooth movement into a square wave pulse signal. The output frequency changes with rotational speed.

     ❯

    The recommended sensing distance is ≤2mm between the sensor face and the gear tooth. Proper installation distance helps ensure stable pulse signal output.

     ❯

    Yes. The sensor is commonly used for engine speed monitoring, gearbox speed measurement, and hydraulic motor speed monitoring by providing a pulse signal to speedometers, tachometers, or control systems.

    1 review(s)
    5.0 1
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    Carl Davidson | 7/20/2026 8:55 AM
    3 wire hall effect speed sensor was a good replacement
    needed a 3 wire hall effect speed sensor for an equipment repair job after the original sensor started giving unstable readings. the installation process was quite simple, and the wiring matched my controller setup. I adjusted the mounting gap a little during testing, then the speed signal became stable. it has been working fine in daily operation.
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