Martindale lp2000 high current loop tester martindale marlp2000 p the martindale lp2000 is a high current earth loop tester suitable for use on 240v systems the lp2000 carries out p e and p n loop tests displaying pscc readings up to 19 99ka an additional wander lead is also supplied for testing of bonded metalwork p p the martindale lp2000 is supplied with mains test lead wander lead for bonded metalwork batteries instruction manual and soft carry case p martindale marlp2000