Portable USB Inspection Tool with Smallest len 7mm Usage: Extend Your Hands and Eyes. Appropriate for use in surveying pipes Model: 98ATPortable USB Inspection Tool with Smallest len 7mmUsage: Extend Your Hands and Eyes. Appropriate for use in surveying pipes,hard-to-reach areas,equipments,furnishing installation,car repairing,etc.Interface : USB1.1 and 2.0Operating system: Windows 2000 and ...