Gravity - microwave sensor for motion detection V2.0 - DFRobot SEN0192

Index: DFR-05497 EAN: 5903351243339

The sensor uses the Doppler effect to detect the movement of objects. By using microwaves instead of infrared, it is possible to detect objects reflecting waves in the microwave range. In addition, the sensor is not dependent on the ambient temperature, it also detects inanimate objects.

Gravity - microwave sensor for motion detection V2.0 - DFRobot SEN0192
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Manufacturer: DFRobot
Compatibility: Arduino

Product description: Gravity - microwave sensor for motion detection V2.0 - DFRobot SEN0192

The sensor uses the Doppler effect to detect the motion of objects. By using microwaves instead of infrared, it is possible to detect objects that reflect waves in the micro range. In addition, the sensor does not depend on the ambient temperature and also detects inanimate objects.

Microwave detection has numerous advantages over other methods:

  • Non-contact detection
  • The reading does not depend on temperature, humidity, noise, air, dust or light - suitable for harsh environments
  • High resistance to radio interference
  • Signal harmless to humans
  • Wide range and high speed of detection
  • Detects the movement of inanimate objects


The sensor is equipped with a digital output, which should be connected to any input of the microcontroller.

The product is compatible with Arduino

Refer to the user guide for an example code and detailed information.

Example of sensor connection. You can download the library for Arduino from the manufacturer's website.


  • Supply voltage: 5 V +/- 0.25 V
  • Operating current:
    • Typical: 37 mA
    • Maximum: 60 mA
  • Output signal: digital
  • Emission parameters:
    • Detection distance: 2 to 16 m
    • Emission frequency: 10.525 GHz
    • Frequency setting precision: 3 MHz
    • Power output: 13 dBm EIRP
    • Harmonic emission: < -10 dBm
    • Average current: 2 mA
    • Pulse Width: 5 μs
    • Load cycle: 1%
  • Receiving parameters:
    • Sensitivity: 3 Hz to 80 Hz
    • Bandwidth: -86 dBm
    • Bandwidth from 3 Hz to 80 Hz: 10 μV
    • Antenna gain: 8 dBi
    • 3 dB vertical beamwidth: 36 degrees
    • Horizontal beamwidth: 72 degrees
  • PCB dimensions: 63 x 48.5 mm

The board is compatible with the DFRobot IO Expansion Shield connectors for Arduino V7.1.

Kit includes:

  • Microwave sensor for motion detection
  • Connection cable

DFRobot Gravity microwave motion detector

DFRobot's Gravity series microwave motion sensor can detect human motion and other physical objects by emitting electromagnetic waves in the radio frequency range. The sensor can operate in a wide range of temperatures, including industrial environments with a high level of pollution. The method of detecting living organisms and inanimate objects using microwave emission is reliable and resistant to external interference. Moreover, the microwave detector is safe for living organisms, i.e. humans and animals.

DFRobot microwave sensor - withstands even the harshest environments

The DFRobot Gravity Series microwave motion detector is an excellent alternative to classic infrared sensors. Unlike IR sensors, microwave sensors have a much higher sensitivity - they are able to detect the presence of people even behind a wall, even when there is no one in the direct field of view of the sensor. Another important practical advantage of such sensors is their high resistance to extreme weather conditions - from bitterly cold temperatures to tropical heat.

Sensor - type microwave
Sensor - assembly on wires
Package width 6.7 cm
Package height 2.6 cm
Package depth 8 cm
Package weight 0.027 kg

Same-day shipping

  • Crediting the payment for an order on business day from Tuesday to Friday up until 1:00 PM o'clock, and on Mondays up until 12:00 PM, means the order will be shipped on the same day!
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

Payment methods

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Product reviews

Gravity - microwave sensor for motion detection V2.0 - DFRobot SEN0192


Average grade


Customers opinion
The following opinions are collected
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and come from the post-purchase process.
Jan 02.05.2023 Confirmed purchase Translated review
The sensor works very well. Range adjustment works fine.
Katarzyna 05.04.2023 Confirmed purchase Translated review
no comments
Daniel 28.02.2023 Confirmed purchase Translated review
Conforms to the description, works as it should.
Jarosław 21.02.2023 Confirmed purchase Translated review
Works ok. Could be smaller.
Artur 14.02.2023 Confirmed purchase Translated review
High quality product. The shipment was packed securely and arrived quickly to the addressee.
Eryk G. 07.03.2022 Confirmed purchase Translated review
I have no objections to the products I ordered
Rafał G. 14.02.2021 Confirmed purchase Translated review
All OK

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