Megger is the manufacturer of high current loop tester, megger lt300. The product offers high current loop testing over a wide range of frequencies and supply voltages with simple, fast, two wire operations. It has a large clear display that aids visibility in poor conditions. There are two models available, lt300-en-00 that have red or green leads and lt300-en-bs - with bs1363 mains plug lead. The high current loop test provides fast accurate and stable results. The salient features of the high current loop tester: