The EX505A heavy duty true RMS industrial multimeter measures AC/DC voltage, current, resistance, capacitance, dual sensitivity frequency (electric 1 kHz/electronic 10 MHz), type K thermocouple -20C to 760C (-4F to 1400F), and bead wire temperature probe -20C to 250C (-4F to 482F). It features a 6000 count backlit LCD screen, 0.5% basic accuracy, relative/data hold, and an auto power function. With a CAT IV-600 V safety rating and an IP67 rating for water and dust, the EX505A is an ideal tool for electricians, HVAC technicians and benchtop technicians who require accuracy, durability, and safety in their electrical testing equipment