Answer
Aug 16, 2026 - 02:31 AM
PIR (Passive Infrared) sensors are generally better for detecting motion from people or animals in indoor environments, as they are energy-efficient and less prone to false alarms. Microwave sensors are more sensitive and can detect motion through certain materials, making them suitable for larger or more complex spaces, but they are more expensive and can be triggered by non-human movement. The best choice depends on the specific application and environment.
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