TYPE 906 Cable Insulation Tester is similar to ELD with the most important difference that this monitors the signaling cables in un-energized mode. Insulation Resistance value ranging from 500 KΩ to 100 MΩ. It has a special feature, in case a pair is energized the instrument automatically stops functioning.Company:Anu VidyutPhone:+(91)-(1332)-262545/260869Website:http://www.indiamart.com/anuvidyut/ Location: Roorkeeit's NOT ok to contact this poster with services or other commercial interests