Kit is designed to test all conductive, anti-static, and static-dissipative surfaces for electrical resistivity/resistance according to EOS/ESD, CECC, ANSI, ASTM and UL test procedures. Display is an easy-to-read LCD alpha-numeric screen- no LED's. Comes with two built-in 3" parallel surface resistivity probes, two 5 lb. (2.5" RTT, RTG ) test probes, coiled connecting cords, Certificate of Calibration and a 9V battery. Case measures 13-1/2" x 11"x 4-1/4" and weighs 14 lbs. NIST traceable.