RT STROBE pocket LED T with the device or plant to be monitored via a trigger cable. Switching from internal to external triggering displays the units 1/min or Hz rather than FPM. Frequency range 30 ... 300,000 FPM Light intensity max. 4,800 LUX @ 6,000 FPM / 30 cm Flash duration adjustable Material Aluminium / ABS, heavy duty design Dimensions 191 x 82 x 60 mm