Specifications:

Its operating range is 4.5 to 20V.

Its static current quantity is less than 60 microamps.

Its high output level is 3.3V.

Its low output level is 0V.

It has a default repeatable trigger.

Its default delay time is 8S +-30%.

Its PCD dimensions are 10 x 23mm.

Its working temperature is -20 to +80 degrees.

If anybody enters the range of the sensor than the output is high. And when people leave the sensor range after the delay the sensor output will go low.