# RCWL-0516 Radar Doppler Sensor

- Page: https://sigmanortec.ro/en/rcwl-0516-radar-doppler-sensor
- Price: 6.20 RON
- Availability: Out of stock
- Reference: 22014 · EAN: 5944327769514
- Category: Mechatronics and IoT > Sensors and Modules > Distance and Presence Sensors
- Specifications: tension: AD; Supply Voltage: 4; Maximum Input Voltage: 28
- Package (shipping data): 0.002 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:22 (Europe/Bucharest)

## Description

Compact solution for motion detection in automation and security systems, uses microwave radar for better coverage than PIR and can detect through certain materials. Offers 3.3V trigger output, distance and blocking time can be adjusted, and support for CDS photoresistor allows operation conditioned by ambient light.
Radar Doppler sensor RCWL-0516, an optimal solution for motion detection , ideal for use in automation and security . Designed to operate at an operating voltage of 3.3V , this sensor with microwave technology offers superior capabilities compared to traditional PIR infrared sensors, ensuring extended coverage and accurate detection.
The module allows the installation of a CDS (Cadmium Disulphide) light resistor, to limit the operation of the board depending on the ambient light, making this sensor also suitable for lighting applications. On the back of the board you also have the possibility to install a resistor on the R-CDS that allows adjusting the sensitivity to light, by adding resistance in parallel with the photoresistor.
Characteristics:
Microwave detection: Penetrates various obstacles to ensure efficient detection.
Adjustable lock time: Allows custom setting of parameters.
Adjustable detection distance: Allows setting the detection distance for different applications.
Installation: It is recommended to place the modules at a minimum distance of 1 meter to avoid interference.
Specifications:
Supply voltage: 4 - 28VDC
Operating voltage: 3.3V
Technology: Microwave
Operating frequency: 3.181GHz (approx.)
Detection modes: Adjustable
Installation distance: Minimum 1 meter
Pins:
3V3: 3.3V output
GND: Ground
OUT: Trigger: HIGH (3.3V) if movement is detected. 0V Normal.
WINE: 4 - 28VDC Supply Voltage
CDS: Photoresistor Pin, LDR 10-20k RL, U_LDR > 0.7V = On