OE-28 Hall Effect Two Channel Magnetic Encoder


Out of stock

Approx Restocking Date: 25 to 30 Days
SKU: 300738

This encoder is featured and developed for the series of Orange planetary DC gear motors. The encoder are tested for its precise output and robustness in all electronic as well as environmental parameters listed. So If you wish to add feedback to older or new gear motors this encoder will do the trick as long as your Motor has a long back shaft.


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Brand: Orange
Category: Rotary Encoder
Tags: Hall Effect encoder, rotary hall effect encoder

A two-channel Hall effect encoder is used to sense the rotation of a magnetic disk on a rear protrusion of the motor
shaft. The quadrature encoder provides a resolution of 7 counts per revolution of the motor shaft when counting both edges of both channels. To compute the counts per revolution of the gearbox output, multiply the gear ratio by 48. The encoder has six pins output as shown.

OE-28 Hall Effect Two Channel Magnetic Encoder’s Hall sensor requires an input voltage, Vcc, between 4.5 and 24 V and draws a maximum of 10 mA. The A and B outputs are square waves from 0 V to Vcc approximately 90° out of phase. The frequency of the transitions tells you the speed of the motor, and the order of the transitions tells you the direction.

By counting both the rising and falling edges of both the A and B outputs, it is possible to get 7 counts per revolution
of the motor shaft by both Channels.

Encoder comes complete accessories required to mount the encoder on motor i.e. plastic case, washer, magnet, connecting cable and set of screws

Encoder Pinouts:

1.Motor –
2.Motor +
3.Hall Sensor Vcc
4Hall Sensor GND
5.Hall Sensor A Vout
6.Hall Sensor B Vout

Compatible with:

  1. Orange Planetary Gear DC Motor 12V 40 RPM 8.27Kg-CM PG28M395-126K
  2. Orange Planetary Gear DC Motor 12V 94 RPM 4.68 Kg-CM PG28M395-52.1K
  3. Orange Planetary Gear DC Motor 12V 236 RPM 1.90 Kg-CM PG28M395-21.5K
  4. Orange Planetary Gear DC Motor 12V 427 RPM 1.27 Kg-CM PG28M395-11.2K
  5. Orange Planetary Gear DC Motor 12V 1081 RPM 0.57 Kg-CM-PG28M395-4.6K

Package Includes:

1 x Encoder Board

1 x Plastic Case and Washer

1 x Magnet

1 x Connecting cable




Input Supply voltage (V)

4.5 ~ 24

Supply Current (mA)


Output Current (mA)

< 0.1

Output Leakage Current (μA)


Operating relative humidity

20% ~ 85% RH

Operating Temperature (℃)

-40 ~ +85

Diameter (mm)


Weight (gm)


Shipping Weight 0.02 kg
Shipping Dimensions 10 × 8 × 4 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.  Reimbursement or 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.

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Country Of Origin: China

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