One of my commercial customers is a pathology lab with approximately 100 pieces of lab equipment, refrigerators, and kitchen appliances, they asked me to find some test equipment so i could check all there equipment for ground integrity and current leakage, does anyone know what type of test equipment i need for this. Will a ohm meter take care of the ground integrity on a three wire plug, will a megohm meter take care of both of these scenarios. Thanks for your input