The New CableTool model 50 from Psiber Data Systems provides contractors, electricians, low voltage installers, or anyone involved in the installation or maintenance of metallic cables with the capibility to quickly find faults in cables up to a distance of 2500 feet. Simply select the appropriate cable type from the pre-stored library, attach the leads to two conductors of the cable and with a single press of a button the length of the cable or distance to an open or short is displayed. Voltage on the wires is continuously measured and displayed to warn of a potentially unsafe condition. The