The Extech EX505A is a rugged industrial multimeter rated CAT IV-600V with True RMS accuracy, IP67 waterproof/dustproof protection, and 2m (6.5 ft) drop resistance. It measures AC/DC voltage up to 1000V, current up to 10A, resistance, capacitance, frequency, temperature (Type K), and includes LoZ mode to eliminate ghost voltages. Ideal for electricians, HVAC, and field technicians working in harsh environments.