Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Frequency	10.525 GHz (X-Band)
Technology Type	Microwave Doppler
Model Number	HB100
Detection Range	Up to 20 meters (depending on target)
Beam Angle	Approx. 90 degrees
Supply Voltage	4.5V to 5.5V DC
Current Consumption	Typical 35 mA
Output Signal	Analog Doppler frequency shift
Dimensions	26mm x 18mm x 8mm
Application	Motion detection, speed measurement, automatic doors

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Great for university robotics project

Bought this for our final year robotics project. It successfully detected moving obstacles in our robot's path. Very happy with the purchase and fast shipping.

Anonymous

Mar 23, 2026

Rating: 5/5

Reliable X-Band performance

I've tested several microwave sensors, and this one offers consistent results. The 10.525GHz frequency penetrates non-metallic materials well, which was crucial for my hidden installation.

Anonymous

Mar 15, 2026

Rating: 5/5

Compact and powerful

Small form factor makes it easy to hide in enclosures. The output signal is clean enough for basic microcontroller processing without excessive noise filtering.

Anonymous

Mar 14, 2026

Rating: 4/5

Good value, requires tuning

Solid sensor for the price. You do need to add some external circuitry to amplify the signal properly, but that is expected for a raw module. Works well for detecting human movement.

Anonymous

Mar 06, 2026

Rating: 5/5

Perfect for DIY motion projects

This HB100 module works exactly as described. I used it to build a custom automatic light switch for my workshop, and the sensitivity is impressive. Easy to interface with an Arduino.

Anonymous

Mar 03, 2026

Rating: 4/5

Works well but sensitive to vibration

The detection range is good, but I had to mount it very securely because it picks up mechanical vibrations as motion. Once stabilized, it works perfectly for my garage door opener prototype.

5 FAQ

Q: Does this come with a connector or just pins?

A: This item is sold as a bare module with solder pads. You will need to solder wires or headers to connect it to your circuit.

Q: Is this suitable for measuring vehicle speed?

A: While it uses Doppler shift which is the principle behind speed guns, accurate speed measurement requires specific signal processing and calibration. It is possible but requires advanced engineering.

Q: What is the maximum detection distance?

A: Detection range varies based on the size of the moving object and environmental factors. For a walking human, it typically detects motion up to 20 meters in open space.

Q: Can this sensor detect motion through a thin plastic wall?

A: Yes, microwave signals at 10.525 GHz can typically penetrate non-metallic materials like plastic, wood, or glass, provided they are not too thick or dense.

Q: What voltage does this module require?

A: The HB100 module operates on a DC supply voltage between 4.5V and 5.5V. It is commonly powered by a standard 5V USB source or a regulated 5V rail.

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