Where powerful illumination and rugged speed measuring accuracy is required for the textile industry, the DT-311J will perform where other stroboscopes will not. The DT-311J is used to set injection timing, injection pressure, timing of shedding and weft running time of weaving machinery. Units combine rugged NEMA 4X (IP65) housing with high performance accuracy, special phase shifting, with shock absorbing components and top mounted handle, allows the equipment operator maximum flexibility when setting the timing of weaving machinery.