When someone enters its sensing range of the input high, people leave the sensor range automatically delay off high, output low.Great for DIY electronic circuit, sensor toys, sensor light, etc.
Unrepeatable trigger: the sensor output high, the delay time has elapsed, the output will be automatically from high to low.
Repeatable trigger: the sensor output high, the delay period, if there is human activity within its sensing range, the output will remain high until people leave after the delay will be high level goes low (will be automatically extended sensing module detects the human body after every activity a delay period, and the last time an event is the starting point of the delay time).