The HC-SR505 is a compact and highly sensitive infrared motion sensor module designed for automatic control applications. Using advanced PIR (Passive Infrared) technology, it detects human presence within its sensing range and outputs a high-level signal when motion is detected. Once the person leaves, the module maintains the high output during a configurable delay period before switching to low.
This module is ideal for battery-powered devices thanks to its ultra-low power consumption (<50µA static current) and wide working voltage range from 4.5V to 20V DC. Its small size and reliable operation make it perfect for human body sensor lamps, toys, security products, and other automatic induction equipment.
Key Features:
Automatic detection: Outputs HIGH when motion detected; delayed LOW after exit
Repeatable trigger: Delay timer resets if motion continues within sensing range
Wide voltage range: 4.5V to 20V DC
Ultra-low power consumption: <50µA static current, ideal for battery power
Compact size: Fits easily into small devices
Easy output interface: High-level signal compatible with microcontrollers and circuits
Applications: Security alarms, automated lighting, toys, industrial automation
100% Original product that covered warranty by the vendor.
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