LED 4 Digit Red Display Indicators Tachometer+Hall Proximity Switch Sensor NPN


In stock

SKU: 766355
  1. Appearance(Hall NPN sensor): M12mm cylinder
  2. Output: NPN three wire normally open type
  3. Working voltage of tachometer: AC/DC 8-24V
  4. DC current: 40mA
  5. Counting range: 0-9999


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Category: Other Proximity Sensor & Modules

This digital display counter has a bright LED light, high accuracy, good stability, and easy installation. The meter remains the number automatically when power off. It has The working power supply of  AC/DC 8-24V, 40mA. The product has good stability, strong anti-interference, and is ability suitable for display of various digital instruments.

Application: Lathe, CNC, Mower, Spring, etc. Measure varied motor RPM.

Connection Diagram:

Display With Sensor New


  1. 4 digit bright LED light, clear to read.
  2. Good stability, high accuracy, and easy installation.
  3. Counting value will be retained when power failure.
  4. Wide application to automation equipment and test equipment, etc.
  5. Compact size, beautiful appearance, and Blue, Green, Red, three color for you to choose.

Hall NPN sensor:

  1. Appearance: M12mm cylinder
  2. Output: NPN three wire normally open type
  3. The detection distance: 10 mm
  4. Supply voltage: 8-24VDC,6-36VDC
  5. Output current: 200 mA
  6. Objects can be detected: permanent magnets
  7. Switching frequency: 320 KHZ
  8. Wiring:brown-Power+,blue-Power-,black-signal

Package Includes:

1 x 4 Digital red measurement indicators tachometer
1 x Hall NPN proximity sensor

SKU: 766355 Category:
Working voltage

AC/DC 8-24V

DC current



Plus or minus

Counting range


Measure range


Input voltage

low level: -30V-0.6V
high level:4-30V

Digit number

4 digit


Blue, Green, Red

Appearance(Hall NPN sensor)

M12mm cylinder

Switching frequency(Hall NPN sensor)

320 KHZ

Supply voltage(Hall NPN sensor)


Shipping Weight 0.08 kg
Shipping Dimensions 15 × 8 × 5 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.


Questions and answers of the customers

  1. 0 votes
    Q is it works on the 240V input supply? answer now
    Asked by ajitpgorte on February 2, 2023 5:16 pm

    No, Its operating voltage is AC/DC 8-24V

  2. 0 votes
    Q how to connect/wire this sensor? does it need any controller? answer now
    Asked by sbhikole on April 16, 2022 4:23 pm

    No, it not require an additional controller. yo... Read more

  3. 0 votes
    Q How this product is connecting answer now
    Asked by thansi on February 15, 2022 5:41 pm

    Connection diagram for this product is availabl... Read more

  4. 0 votes

    Connection diagram is available in description ... Read more

  5. 0 votes

    Connection diagram for this product is availabl... Read more

  6. 0 votes
    Q Wiring diagram not available Pl send me answer now
    Asked by syvispute on November 1, 2021 6:46 pm

    Connection diagram is available in description ... Read more

  7. 0 votes
    Q HOW TO USE THE MECHINE answer now
    Asked by thasleem.icrg on October 27, 2021 4:51 pm

    Refer the datasheet and connection diagram of t... Read more

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Country Of Origin: China