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Home / Sensors / Hi-Link 5.8GHz Radar Sensing Module Human Motion Sensor LD020 Low Power Consumption Suitable for LED Lighting

Attributes

Brand -
Category Robotics / STEM Teaching Tools / Sensors
Origin -
Operating Frequency 5.8GHz
Detection Range 3-8 meters (adjustable)
Supply Voltage DC 3.3V - 5V
Power Consumption < 0.2mW (Standby)
Output Signal High/Low Level TTL
Delay Time Adjustable via potentiometer
Sensing Angle 360 degrees omnidirectional
Operating Temperature -20°C to +70°C
Dimensions 24mm x 16mm x 2mm
Application LED Lighting, Smart Home Automation

6 reviews

A

Anonymous

Mar 28, 2026

Rating: 5/5

Perfect for my smart hallway lights

This sensor works flawlessly with my ESP32 project. The detection range is accurate, and the low power consumption is exactly what I needed for a battery-backed system. Setup was straightforward.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Consistent performance

I've been running this module for three months straight in my garage. It hasn't missed a single motion event, and the power draw is negligible. Highly recommended.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Compact and efficient

Impressed by how small this unit is. It fits easily into tight junction boxes. The response time is instant when someone walks in, making it ideal for stairwells.

A

Anonymous

Mar 15, 2026

Rating: 4/5

Good sensitivity, needs calibration

The module is very sensitive, which is great, but I had to spend some time adjusting the potentiometer to avoid false triggers from moving curtains. Once calibrated, it works perfectly.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Reliable for commercial lighting

We integrated these into several office lighting prototypes. The 5.8GHz radar penetrates thin materials well, allowing us to hide the sensor behind plastic covers without losing performance.

A

Anonymous

Mar 06, 2026

Rating: 4/5

Great value for money

For the price, you can't beat the performance. It's not as feature-rich as some expensive industrial sensors, but for hobbyist and basic home automation, it exceeds expectations.

5 FAQ

Q: How long is the delay time adjustable for?

A: The delay time is adjustable via a second potentiometer on the board, typically ranging from a few seconds up to several minutes depending on your specific setting.

Q: What is the maximum current output of the signal pin?

A: The output is a TTL level signal. Please ensure your load does not exceed the specified current limits of your microcontroller or relay driver connected to the output.

Q: Is there a way to adjust the detection distance?

A: Yes, there is an onboard potentiometer labeled 'Range' that allows you to fine-tune the detection distance between approximately 3 to 8 meters.

Q: Does this work with 12V systems directly?

A: No, the operating voltage is DC 3.3V to 5V. If you need to use it with a 12V system, you must use a voltage regulator or step-down module.

Q: Can this sensor detect motion through a glass cover?

A: Yes, the 5.8GHz radar waves can penetrate non-metallic materials like glass, plastic, and wood, allowing the sensor to be concealed.

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