Pulse Count: A signal processing feature, it can be used to adjust the detector to suit the environment without having to mask off zones or reduce sensitivity. If drapes of foliage are within the detector’s range, increasing the pulse count will prevent slight movements from triggering an alarm.

The double knock also known as the dual pulse function can be found in most moden passive infrared detectors. Kwêbeams can also be set up to make use of this function should circumstances require it.