The Desco Premium Anti-Static Metal Expansion Wrist Strap and Coil Cord Kit features a thinner and narrower design with rubber grip edges. It is easier to hold and provides protection from drops. New Quick Check Button bypasses the 15 second electrification period to allow quick spot checks. Easy-to-access battery compartment without the need for tooling or probes. The Digital Compliance Verification Surface Resistance Meter Kit measures resistance point-to-point(Rtt) or surface to ground (Rtg) of work surfaces, flooring systems, garments, packaging, and other materials in accordance with ESD Association documents: ESD TR53, ANSI/ESD S4.1, ANSI/ESD S7.1, ANSI/ESD STM97.1 and other documents. Resistance Range: Greater Than 1.0 x 10 to the power of 3 ohms to Less Than 1.0 x 10 to the power of 12 (+/-10% Accuracy). Determines if a surface is dissipative, conductive, or insulative for ESD control applications in electronics manufacturing or handling environments. Under Load Test Voltages (10V or 100V +/-5%). Meets ANSI/ESD S20.20 resistance testing requirements for product qualification and compliance verification. Selectable Test Voltage switches to appropriate test voltage (10V for tests 1 x 10 to the power of 6) in AUTO mode or may be fixed to at 10V in HOLD mode. Ohm Values are Expressed with a Digital Mantissa and LED Exponent to provide an easy to read and accurate measurement. Pre-set 15 Second Electrification Period in Full Test Mode meets ANSI/ESD S4.1 testing requirements. Measures temperature (Fahrenheit and Celsius) and relative humidity (during 15 second electrification period) as required by ANSI/ESD S20.20. NIST Calibrated with Certificate. Made in the United States of America. Kit contains one digital surface resistance meter, two 5-foot shielded test leads, two five pound electrodes, two AA batteries, one gator clip, one carrying case, and one certificate of calibration.