2-Wire Loop Impedance Tester is widely used in various industries for testing purposes. The Loop Impedance Tester is designed with 2 wires and this loop tester for CATIV applications. The Loop Impedance Tester is available in two models such as LT300-EN-00 - with red/green leaf and LT300-EN-BS with BS1363 mains plug lead. The 2-Wire Loop Impedance Tester comes in various sizes and models.