6207-012-A Digital Stroboscope, Includes Battery Charging Station, Resolution 1 fpm, Digital Display Screen Type LCD, Maximum Flashes per Minute 10,000 fpm, Minimum Flashes per Minute 30 fpm, Maximum Flash Duration 20 usec, Power Source Battery, Calibration Certificate Type NIST, Phase Shift No Phase Shift, Minimum Flash Duration 8 usec, External Triggers No External Triggers Included, Body Style Full Size, Battery Run Time 2 hr, Minimum Operating Temperature 32 Degrees F