Profile: Electro-Tech Systems, Inc. provides electrostatic & environmental control equipment and services. We deal with humidity chambers, temperature chambers, dry & glove boxes, heating, cooling, humidification & dehumidification systems, and microprocessors. Our products include electrostatic measuring & static monitoring equipment. We also provide services including an independent test laboratory performing antistatic evaluation, ESD auditing and consulting services. Our electrostatic discharge is a significant factor in the premature failure of electronic equipment and the ignition of explosive devices. Our model 271 screening efficiency tester is a portable, battery-powered, instrument designed to accurately measure the screening efficiency in decibels (-db), in both field & d laboratory environments.