Double King Industrial Holdings Co., Ltd. specializes in selling instruments and meters under the brand of VICTOR.  VICTOR products have won a good reputation since our first promotion in the 1980s. Our products include analog and digital multimeters, clamp-meters, calibrators , megohmmeters, thermometers, tachometers, vibrometers,  lux meters, function generators, frequency counters, oscilloscopes and other electronic testing and measuring equipment.