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    Hall Magnetic Proximity Sensor, M12, NPN/ PNP

    5 out of 5 based on 1 reviews | Write a review
    Factory price magnetic proximity sensor, M12 thread, is a hall effect sensor with NPN NO/NC or PNP NO/NC signal output, flush installation type, 12mm detection distance, yellow LED indicator. This hall magnetic switch provides long sensing ranges that can reliably detect magnetic objects.
    SKU: ATO-MPS-M12
    30-day Returns
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    Delivery date: 6-12 days

    M12 thread hall magnetic proximity switch is divided into normally open and normally closed, and the output signals are NPN and PNP. It is small size and corrosion resistance at low price, which can be used in poor work environment.


    • The detection distance is determined by the magnetic strength of the target
    • Long life and high reliability
    • Yellow LED display can check the status of the sensor
    • Economical and simple operation
    • Protection class IP67 (ICE)


    Model ATO-FN12D
    Signal Output (Optional) NPN NO, NPN NC, PNP NO, PNP NC
    Detection Distance 12mm
    Installation Type Flush
    Supply Voltage 10~30 VDC
    Switch Point Offset ≤+10%
    Hysteresis Range 3~20%
    Repetitive Error ≤3%
    Load Current ≤200mA
    Residual Voltage ≤2.5VDC
    Circuit Protection Surge Protection, Short Circuit Protection, Overload Protection, Reverse Polarity Protection
    Indicator Yellow LED
    Consumption Current ≤15mA
    Ambient Temperature -25~70℃
    Environment Humidity 35~95RH%
    Switching Frequency 200Hz
    Withstand Voltage 1000/AC 50/60Hz 60s
    Insulation Resistance ≥50MΩ (500VDC)
    Vibration Resistant Complex Amplitude 1.5mm 10~50Hz (2 hours each in X, Y, and Z directions)
    Protection Degree IP67
    Dimension M12*1*40
    Housing Material Nickel Copper Alloy
    Connection Type 2m PVC Cable
    Weight 1kg

    Dimensions (Unit: mm)

    Dimensions of M12 Magnetic Proximity Sensor

    Wiring Diagram


    Wiring Diagram of M12 NPN Magnetic Proximity Sensor


    Wiring Diagram of M12 PNP Magnetic Proximity Sensor

    Tips: Structure of magnetic proximity switch

    Magnetic proximity switch is a contact sensor. It consists of two alloy reeds with high magnetic conductivity and low coercivity and is sealed in a glass tube filled with inert gas. A certain amount of overlap and proper clearance are maintained between the two reeds. The ends are gold-plated as contacts and the leads are welded outside the tube. When the magnetic induction intensity of the sensor position is large enough, the two reeds attract each other to make the contact conduction. When the magnetic field weakens to a certain extent, it is released under the action of the spring itself. 

    Magnetic proximity switch is mainly used for detection when it is driven by a permanent magnet. If used as a limit switch, replacing the travel switch by collision contact, can improve the reliability and service life of the system. In PLC controller, it is often used as a position control signal.

    Existing reviews of Hall Magnetic Proximity Sensor, M12, NPN/ PNP
    I will continue to buy it in the future.
    This is my second purchase of this M12 proximity sensor. The first time I bought it, I felt the product was good, so I bought three for the second time, and will continue to buy them in the future.
    From: Cyang | Date: 25/01/2022
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