ACL-385, Surface Resistivity MeterCondition:* Used, Old Stock. Like New.Additional Notes:* The First Wide Range Hand Held Surface Resistivity Meter. * This Compact Meter Measures Both Surface Resistivity and Resistance to Ground With a Test Range From 103 to 1012 Ohms Per Square.* CE Approved* Simple repeatable measurements of conductive, static dissipative and insulative surfaces by the ASTM standard D-257 method of parallel bar sensingACL385