Associate electronics is a leading company that manufactures holiday detectors, pinhole detectors, spark testers and ancillary testing equipments. The products offered by the company are sophisticated and elegant, with advanced technologies to impart better quality and fast execution on the job in the field with reduced cost. The company provides these spark testers to test any defect in the rubber lining, frp coating and other insulated coatings. Some of the technical specifications of these spark testers include 230 v ac, 50 hz operating voltage and 0 to 40 kv output. These spark testers are available with salient features like using advanced technology incorporation; fully electronics systems instead of conventional electro-mechanical system; maintenance free; and an analog meter is integrated for set voltage indication. The spark tester from associate electronics finds applications in testing any defect in the rubber lining, frp coating and other insulated coating.