HB100 Microwave Doppler Radar Wireless Motion Sensor


In stock

SKU: 28629
  1. Low current consumption (typical 30 mA)
  2. CW or pulse operation
  3. Flat profile
  4. Long detection range (20 m)
  5. Supply voltage: 4.75V to 5.25V
  6. X-Band Frequency: 10.525 GHz
  7. Minimum Power Output: 13 dBm EIRP


(Including GST)

In stock

Select below products to add together

2.54MM pitch 40 Pin Male Double Row (2x20) Pin Header Strip Breakable-10pcs ₹ 119
Male To Female Jumper Wires 40 Pcs 10cm ₹ 38

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Category: Other Sensors
Tags: Microwave Doppler Radar, Vibration Sensor, Motion Sensor, Moton Detector, Vibration Detector, Shock Sensor, Shock Detector, HB100, Doppler Radar

HB100 Miniature Microwave Motion Sensor is an X-Band Bi-Static Doppler transceiver module. It has a built-in Dielectric Resonator Oscillator (DRO) and a pair of Microstrip patch antenna array, making it ideal for usage in motion detection equipment.

This module is ideal for alarms, motion detectors, lighting control, vehicle speed measurement, and automatic doors.

Doppler Principle

Doppler theory based on time. when radio waves encounter an object in the moving process will be reflected when the waves. the frequency of the reflected wave will hit the object with the movement to change state. If the radio waves encounter an object position is fixed. then the reflected wave frequency and transmitting frequency waves should be equal. If the object moves toward the launch. then the reflected waves will be compressed. that will increase the frequency of the reflected wave; otherwise, the reflected wave’s frequency decreases.

Note: Please use a low voltage soldering iron and connect it to a reliable grounding. This device is sensitive to ESD and it may be damaged during soldering. The IF output of the HB100 module is especially sensitive. You can check it for damage using a multimeter in diode mode. The forward voltage drop between IF and GND should be about 0.25 V. 

Features :

  1. Low current consumption (typical 30 mA)
  2. CW or pulse operation
  3. Flat profile
  4. Long detection range (20 m)

Package Includes :


Tutorial :

HB100 Microwave Motion sensor Interfacing Arduino

Input Supply Voltage (VDC)

4.75 ~ 5.25

X-Band Frequency(GHz)


Minimum Power Output

13 dBm EIRP

PCB Size ( L x W ) mm

45 x 38

Height (mm):


Shipping Weight 0.04 kg
Shipping Dimensions 6 × 5 × 2 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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Questions and answers of the customers

  1. 0 votes
    There are no answers for this question yet. Answer now
  2. 0 votes
    Q can we use this model to detect blood pressure answer now
    Asked by prachipachori20 on November 15, 2021 10:23 am


    This model cannot detect blood pr... Read more

  3. 0 votes

    As per the principle of the doppler

    " Read more

  4. 0 votes

    No, this module cannot be kept inside the box b... Read more

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Country Of Origin: China

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