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Detect Nearby Objects Without Contact
The Microwave Digital Sensor Motion Detection is a proximity presence sensor module with digital output designed for obstacle detection, touchless triggers, object counting, and simple automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Working Voltage: 5V + 0.25V; Output Power (minimum): 13dBm EIRP; Interface: Gravity 3-Pin interface（Digital）.
Why you’ll love it
- Non-contact detection: Non-contact detection
- Key feature: Readings not affected by temperature, humidity, noise, air, dust or light - suitable for harsh environments
- Wide detection range and high velocity: Wide detection range and high velocity
- Useful spec: < -10dBm
- Easy wiring: Gravity 3-Pin interface（Digital）
- Controller output: 13dBm EIRP
Compare with similar products
| Product | Sensor style | Standout |
|---|---|---|
| Microwave Digital Sensor Motion Detection | proximity presence sensor module with digital output | Current item |
| PIR Micro Motion Detection Sensor AM312 | proximity presence sensor module with digital output | digital output, infrared sensing |
| Distance Sensor 10-80cm GP2Y0A21YK0F Sharp | infrared distance sensor with digital output | adjustable sensing range, infrared sensing |
| Microwave Doppler Radar Distance Sensor SENS-RCWL-0516 | infrared distance sensor | temperature sensing |
What you can build
This sensor is a good fit for robot obstacle avoidance, touchless dispensers, automatic doors, object counters, parking aids, and level alarms.
Starter bundles
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard and jumper wires for quick setup and testing.
Recommended add-ons
Useful add-ons include a microcontroller board, jumper wires, and pull-up or pull-down support when needed, depending on how you plan to power, mount, and log the sensor.
Technical specifications
| Product | Microwave Digital Sensor Motion Detection |
|---|---|
| Harmonic Emission | < -10dBm |
| Vertical 3dB Beam Width | 36 degrees |
| Interface | Gravity 3-Pin interface（Digital） |
| Output Power (minimum) | 13dBm EIRP |
| Working Voltage | 5V + 0.25V |
| Working Current (CW) | 60mA max., 37mA typical |
| Average Current (5%DC) | 2mA typ. |
| Emission Frequency | 10.525 GHz |
Wiring & usage notes
Connect power and ground, then wire the output pin to a digital GPIO input. Check whether the module uses active-high or active-low logic in your code.
What’s in the box
1 × Microwave Digital Sensor Motion Detection