Extech MG320 CAT IV Insulation Tester and True RMS Multimeter – 1000V Digital Insulation Resistance, AC/DC Voltage, Continuity, Auto-Ranging, Backlit LCD, Safety Rated Professional Electrical Meter

The MG320 combines a portable 20gω/1000V insulation tester with a true RMS multimeter. Insulation tester includes Pi/dar modes, programmable timer, and a comparator for custom test configurations and Quick results. CAT IV 600V safety rating. Manually store/recall up to 99 readings. 5 test voltage ranges. High voltage and overload indication. Complete with test leads, alligator clip, 6 x AA batteries, and soft case.

• 2-in-1 Professional Tool - Combines a 1000V insulation resistance tester with a true RMS digital multimeter, giving you both safety and accuracy in one compact, rugged instrument.
• Accurate Insulation Testing - Delivers test voltages of 250V, 500V, and 1000V with insulation resistance measurement up to 4GΩ, helping identify breakdowns in wiring, motors, and industrial equipment.
• True RMS Precision Multimeter - Measures AC/DC voltage up to 1000V, current, resistance, continuity, and diode checks with reliable true RMS accuracy, ensuring precise diagnostics for demanding electrical work.
• Engineered for Safety & Durability - Rated CAT IV 600V and CAT III 1000V, with overload protection, robust housing, and a backlit LCD for safe operation even in dimly lit or high-risk environments.
• Convenient & Field Ready - Features auto-ranging, data hold, min/max recording, and a low battery indicator. Supplied with test leads, carrying case, and batteries—ready to tackle jobs on the go.