Palm-Sized      |     Standard      |     Cases Digital Strobe Light: Range Flashes / Minute 30-8,000 FPM / RPM Accuracy / Resolution +/- 0.01% of reading / 0.1 FPM Digital LCD Display N.I.S.T. Certificate of Calibration included Options: A/C powered for continuous use - Starting at $235.00 Battery powered for portable use - Starting as $385.00 Kit with case and spare lamp Advanced Options: Up to 14,000 Flashes Per Minute *2 and /2 Buttons For Harmonics, Speed Check, Etc. Phase Shifting With 5 Degree Increments Store and Recall 6 Measurements Flashes Per Minute (FPM) or Hz Readings Input and Output TTL Jacks Tach Mode Allows Up To 200,000 FPM With An External Sensor Model: A/C Powered A/C Powered Kit Battery Powered Battery Powered Kit Battery Powered Advanced Battery Powered Advanced Kit Copyright © GSI,  All rights reserved.