HaiWang HW-M21-2 Microwave Radar Sensor Module, 10m Range
The HaiWang HW-M21-2 is a 10m-range active microwave radar motion sensor module featuring a planar microstrip antenna. It outputs a voltage signal upon detecting moving objects or vehicles, making it compatible with security systems, lighting controls, and automated gates.
Features
- 10-meter detection range for moving objects and vehicles.
- Planar microstrip antenna design for low power consumption and high consistency.
- Strong anti-jamming performance, unaffected by temperature, humidity, dust, noise, or ambient light.
- 180° hemispherical detection coverage with no dead zones.
- Signal can penetrate non-metallic obstacles like glass, plastic, and thin foliage.
Out of stock
The HW-M21-2 module operates on the principle of active microwave Doppler radar, transmitting and receiving signals via its integrated planar antenna. It detects motion by sensing frequency shifts in the reflected signal from moving targets, outputting a corresponding voltage signal for easy integration into control circuits.
Engineered for robust performance, the module maintains high sensitivity in indoor environments, with a slight reduction outdoors. Its design ensures reliable operation across varying environmental conditions, making it suitable for continuous monitoring applications in security, automation, and energy management systems.
Additional Information
| Weight | 0.025 kg |
|---|---|
| Dimensions | 10 × 8 × 4 cm |













