(6) False Positive Rate; (7) Radiation; (8) Power Supply - Seeed SYH24A1 Instruction Manual

SYH24A1 24G Millimeter Wave Radar
The antenna of this radar module has a fixed angle output. The millimeter wave
can penetrate clothing, bedding, glass, wooden boards and other materials, but
cannot penetrate the human body and walls.

(6) False positive rate

Human biological signals belong to ultra-low frequency, weak reflection
characteristic signals. The radar module needs a relatively long time to perform
data accumulation and data processing. In the process of data accumulation,
many factors may affect the radar parameters. Occasional detection failures
are normal. You can reduce the false alarm rate by adjusting the installation
angle and distance.

(7) Radiation

The output power of this radar module is very low, the signal power is less than
one tenth of that of a mobile phone, and there is no risk of excessive radiation
or radiation pollution.

(8) Power supply

The operating power consumption of this radar module is about 0.5W. It is
recommended to be used with a power adapter. It is not suitable for
applications powered by separate batteries.
- 6 -