Incoming inspection is an important stage in manufacturing because the electrical properties of purchased materials can influence the performance of an entire electrostatic discharge protection program. SISCO ESD surface testers can help quality inspectors examine selected materials and components before they enter production, depending on the measurement capabilities of the instrument. For example, a surface resistance tester can be used to evaluate appropriate packaging materials, protective work surfaces, and other items intended for use in designated electrostatic protected areas. The resulting measurements provide additional information for comparing incoming products with internal purchasing specifications and supplier documentation. When a material does not produce an expected result, quality personnel can investigate whether the difference is associated with the material itself, its condition, or the measurement procedure. This approach helps companies make more informed decisions about material acceptance and supplier performance. Regular testing can also establish a practical record of incoming inspection results, allowing quality teams to identify recurring variations across different shipments. SISCO ESD testers offer a useful means of supporting these procedures without requiring every inspection activity to depend on an external testing service. However, measurements should be performed under appropriate environmental conditions and according to the relevant test method. By adding electrical surface evaluation to incoming inspection, manufacturers can strengthen material traceability, improve purchasing decisions, and reduce the likelihood of introducing unsuitable static-control materials into their production processes.