Jumbo Continuity Tester operates on latest technology that allows checking continuity of any cable. The Continuity Tester comes in compact construction and can be easily carried. Jumbo Continuity Tester is manufactured by MDR Electronics, an ISO 9001: 2008 and ISO 14001:2008 recognised company. MDR Electronics manufactures a wide range of electronic accessories, Cables and Spare Parts for home theatre or audio systems, computers, laptops, gaming, camera, fibre optic and security & surveillance systems, under the brand name `MX`. The Jumbo Continuity Tester is suitable for multi-purpose applications.