Designed to withstand harsh environments and usage, the meter's rugged, double-molded housing is IP67-rated (waterproof and dustproof) and drop-tested to 6 ft. The large, illuminated LCD displays 4-digit readout (to 6,000 counts). The EX520-NIST offers various must-have measurements. The meter features 0.09 percent accuracy and a CAT IV 600-volt safety rating, protecting users even on outdoor wiring. Product includes a 3 year warranty, double molded test leads, 9V battery, magnetic hanging strap, temperature probe and carrying case. Includes certificate traceable to NIST.