Pocket sized, battery powered, and simple to use, this Surface Resistivity Meter is ideal for everyday use to check the suitability of work, floor, and packaging surfaces. Simply place the meter on the surface to be tested and press the test button. The meter measures surface resistivity in Ohms per square, per EIA-541 test method ASTM D-257, and also measures resistance to ground in Ohms Range 10(3) – 10(12) per ESD standards S-11.11