The saturation power for the Pyrocam IIIHR in chopped mode is 3.0W/cmᒾ (25Hz) and 4.5W/cmᒾ (50Hz) and the Saturation energy in pulsed mode is 15mJ/cmᒾ.
Follow this link and input your laser parameters and you can calculate the your power density.

The sensor is centered around 15.15mm, however, if the accuracy of its placement is critical, measurements are available upon request.

25/50Hz chopped mode, SS-100Hz pulsed mode consecutive, up to 1kHz pulse mode non-consecutive
The effective frame rates listed in BeamGage specification sheets are the maximum rates typically achievable in actual use.  Frame buffering, image processing techniques, graphical displays, and mathematical computation all add degrees of overhead to achieving higher frame rates.  This can be further limited by the available PC hardware.  BeamGage features two modes, Frame Priority and Results Priority, which change how the system balances the work.  Results Priority acquires a frame, performs any enabled image processing, performs all calculations and updates the graphical displays before accepting another frame from the camera.  This mode is most useful when a temporal sequence of frames is not necessary and should always be enabled when logging.  Frame Priority mode will allow the calculations and graphical display updates to be interrupted if another frame is ready from the camera before those operations are complete.  This can be useful when collecting all frames at the maximum camera frame rate is necessary.

1.6mm - 12.3mm
The accurate beam size minimum is derived by the pixel size of the camera. In order to get an accurate measurement, there must be enough coverage of pixels to ensure that illuminating another pixel will not over exaggerate the beam size.
Follow this link to find out more.