IENet PRO Cable Tester for RJ-45 and M-12 Industrial. Ideal IENet™ Pro 8-Way cable tester is a coax cable mapper and tracer with eight remotes. It is designed for RJ-45 and M-12 industrial Ethernet cable. It includes LEDs that identify remote number, opens or shorts and has an in-built tone generator. Tester comes with a carrying case and remote storage.