HC-SR501 is based on infrared technology, automatic control module, high sensitivity, high reliability, ultra-low-voltage operating mode, widely used in various auto-sensing electrical equipment, especially for battery-powered automatic controlled products. Infrared sensor with control circuit board. The sensitivity and holding time can be adjusted.
Working Voltage Range: DC 4.5V- 20V;
Current drain: <60uA;
Voltage Output: High/Low level signal:3.3V TTL output;
Detection distance: 3--7M;
Detection range: <140°;
Delay time: 5-200S(can be adjusted, default 5s +-3%);