A must for any audio/video/IT installer or repair tech:

• Quickly trace and identify cables & wires. 
• Insulated inductive probe tip prevents shorting conductors.  
• Alligator clips for non-terminated cables
• Modular connectors for direct connection to telephone/data line.
• Selectable continuous or variable tone generator

Test include:

• wire trace
• continuity
• clear/busy/ring line test
• tip/ring indentification