These stroboscopes are designed for quality control, motion analysis, vibration problems, maintenance work, experiments in engineering school projects, production line checks, examination and speed measurement of motors under various loads, gear movement and engagement, alignment of parts, cams, propellers, fan blades, centrifuges, spindles, turbines and other machinery exhibiting repetitive motion. They also can provide pertinent information on the motion of vibrating parts, oil leaks, liquid spray patterns and a host of other industrial and scientific applications. Unique instruments for the printing industry to check color registration, ink integrity, clarity, etc. They feature phase shifting, floating decimal point and LED digital display, slave functions and manual flash rate control. As electronic digital tachometers, they measure RPM without contact or special markings. FEATURES Available as Strobe KIT Plastic housing with strength members Phase shift External trigger Unique rotary pulse indicator Lightweight design (only 2.75 lb. for DT-725).