Description
Details
HC-SR501 auto-senses light for various applications (in house, basement, outdoor, warehouse, garage, etc,) for ventilator control, alarm, etc.
Features
- Automatic infrared detection (LHI778 probe design)
 Output goes high when objects enter the sensing range, and automatically returns to low when object leaves
- Optional photosensitive control
- Optional temperature compensation
- Trigger mode jumper
- L: Non-repeatable / delay mode: sensor goes low after the delay, regardless of the presence of the object.
- H: Repeatable: sensor stays high as long as any object is detected during the delay time.
- Wide operating voltage range
- Micro-amp power
- Output high signal: easy to achieve docking with the various types of circuit.
- Infrared technology (LHI778 probe design)
- High sensitivity | high reliability
- Widely used especially for battery-powered products
Specifications
| Voltage | 4.8 V – 20 V | 
| Current (idle) | <50 µA | 
| Logic output | 3.3 V / 0 V | 
| Delay time | 0.3 s – 200 s, custom up to 10 min | 
| Lock time | 2.5 s (default) | 
| Trigger | repeat : L = disable , H = enable | 
| Sensing range | <120 °, within 7 m | 
| Temperature | – 15 ~ +70 °C | 
| Dimension | 32 x 24 mmscrew-screw 28 mm, M2 Lens diameter: 23 mm | 










 
	 
	 
	 
	 
	
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