Microwave Sensor
MN-T20M 24GHz Microwave Motion Sensor | Doppler Radar Detection
The MN-T20M Microwave Sensor is a 24GHz Doppler radar motion detector designed for accurate and stable movement detection across wide areas. It outputs RS-485 data signals when motion is detected, making it easy to integrate into smart lighting, security monitoring, and industrial automation systems.
Built for dynamic monitoring, the MN-T20M offers reliable performance and simple installation. Compared with traditional infrared or ultrasonic sensors, its 24GHz microwave detection technology delivers superior stability—remaining unaffected by temperature, humidity, airflow, dust, noise, or light conditions. This makes it ideal for harsh or outdoor environments requiring consistent detection accuracy.
Product Advantage
- 24GHz Doppler radar microwave detection
- RS-485 data signal output for easy integration
- Stable, high-precision motion detection
- Reliable in harsh environments
- Unaffected by temperature, humidity, dust, or light
- Compact design and easy installation
Product Parameters
| DC power supply | 9-16V DC |
| current | <70mA |
| levels of protection | IP20 |
| service frequency | 24GHz ~24.25GHz |
| Microwave detection Angle | 150 degrees |
| Microwave detection range | Level 8 m, installation height 3 m, radius 4 m |
| Relay output time | 3 seconds |
| Output mode of relay | RS485 data |
| working temperature | -30℃ ~ +50℃ |
| Humidity at work | No condensation <93%RH |
| mounting height | 2.5m<H<5 m |
Detection range
Rigging installation: unit (m)
Installation requirements
- Top-mounted installation, the antenna sensing surface is vertical downward.
- There should be no metal plate in front of the sensor.
- Please power on again when the sensor moves from one position to another.
- When multiple sensors are installed in one site, keep a distance of more than 5m.
Wiring Method
Note: Do not connect 'L' (fire line) and 'N' (zero line) wrong, to avoid affecting the normal operation of the product
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FAQ
1. What is the MN-T20M Microwave Sensor used for?
The MN-T20M 24GHz Microwave Sensor is designed for motion detection and dynamic monitoring in smart lighting, security systems, and industrial automation. It detects moving objects using Doppler radar technology and provides RS-485 data output for easy integration into intelligent control systems.