The Monarch Nova-Strobe LED family of rugged industrial stroboscopes provide an extremely bright, uniform light output for performing stop motion diagnostic inspection and RPM measurements. The twelve LED light source is extremely efficient which means long battery life and continuous cool operation. A wide operating range of 30-500,000 flashes per minute covers all applications. The Basic BBL is designed for simple stop motion inspection and RPM measurement applications. The Deluxe DBL adds internal phase shifting, memory for up to 5 preset flash rates, N.I.S.T. calibration certificate and tachometer mode for speed measurements up to 500,000 rpm using optional remote sensors or TTL pulse input/output. The top of the line Phaser PBL has all the features of the DBL and adds external phase delay, time delay and virtual RPM mode. The PBL will also run continuously, 24/7 with the power supply/recharger. Each unit is available stand alone or as a kit.