These pyroelectric detectors (PEM45KUSB respectively PEM45USB) are a combination of a robust pyroelectric sensor and a read out electronic with USB-port. It can be connected to an oscilloscope using the BNC-connector or to a PC using the USB port. In USB mode the BNC connector can be use as an external trigger input.
The output signal is transferred to a connected PC via USB. The device is powered from the USB-port. To display the measured values an user friendly software is available.